False, in gene expression in eukaryotes, the primary transcript is transported unchanged directly to the cytoplasm and is not ready for translation.
A gene is the fundamental physical and purposeful unit of heredity. Some genes act as instructions to make molecules referred to as proteins. but, many genes do now not code for proteins.
Our genes incorporate instructions that inform your cells to make molecules referred to as proteins. Proteins perform various features on our body to keep us healthy. Every gene includes commands that determine your functions, together with eye color, hair shade, and height.
Few genes act as commands to make molecules referred to as proteins. In human beings, genes vary in length from a few hundred DNA bases to extra than 2 million bases.
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A sarcomere spans from ________ to _______.
Question options:
A) Z disk to Z disk
B) T tubule to T tubule
C) I band to A band
D) H zone to I band
E) M line to M line
A sarcomere spans from Z disk to Z disk. option A
What is a sarcomere?A sarcomere is the basic unit of contraction in a skeletal muscle fiber. It spans from one Z disk to the next Z disk along the myofibril. The Z disks are protein structures that anchor the thin filaments of actin. The sarcomere contains overlapping thick and thin filaments that slide past each other when the muscle contracts or relaxes.
The thick filaments are composed of myosin and are located in the center of the sarcomere, forming the A band. The thin filaments are composed of actin and are attached to the Z disks, forming the I band. The H zone is the region of the A band that has no thin filaments. The M line is the protein structure that holds the thick filaments together in the middle of the sarcomere.
An example of a sarcomere is shown below:
|<---- I band ---->|<---- A band ---->|<---- I band ---->|
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
Z disk Z disk Z disk
| | | |
|<-----------------sarcomere--------------------------->|
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The offspring of two true-breeding parents that differ in a single character are called single-character hybrids, or.
The offspring of two true-breeding parents that differ in a single character are called single-character hybrids, or monohybrids.
A monohybrid cross occurs when fertilization takes place between two true-breeding parents that only vary in one trait, and the offspring are monohybrids as a result.
A monohybrid cross is a cross between two homozygous individuals, which produces the opposite phenotype for a certain genetic characteristic. "A monohybrid cross is a cross between two monohybrid characteristics (TT and tt)." The monohybrid cross is in charge of passing one gene on.
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If a color-blind man marries a woman who is a carrier for color blindness, it is most probable that
A. all of their sons will have normal color vision.
B. half of their sons will be color-blind.
C. all of their sons will be color-blind.
D. none of their children will have normal color vision.
The answer is C right?
Answer:
B. half of their sons will be color-blind.
Explanation:
If a color-blind man marries a woman who is a carrier for color blindness, their children will inherit one X chromosome from the mother and one from the father. If a son inherits the abnormal X chromosome from the mother, he will be color-blind. Since the mother has one normal X chromosome and one abnormal X chromosome, there is a 50% chance that a son will inherit the abnormal X chromosome and be color-blind.
Two inect group vary genetically by two gene. When put together, they were able to reproduce and produce offpring that could alo breed. Which bet decribe thi inect population?
They are the same species of insects.
A group of organisms that can reproduce sexually and can result in live, fertile offspring is referred to be a species. Even though there are two genes that separate two insect groups genetically, if they are compatible for mating, they can produce fertile offspring, especially if they are of the same species.
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Wright in each box which word go's into the box for science
The complete statements with the most appropriate words in the blanks are as follows:
A Plant cell contains a cell wall and has a rectangular shape.Photosynthesis is the process by which plants are able to use sunlight to make food. A Chloroplast helps to convert sunlight into food for plants. The cell wall is the rigid layer surrounding a plant cell. An animal cell contains many vacuoles and has a circular shape. What is Photosynthesis?Photosynthesis may be defined as a type of process through which green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.
The process of photosynthesis is accomplished by the double membrane cell organelle i.e. known as Chloroplast which encloses a green-colored pigment known as Chlorophyll that captures the sunlight and converts radiant energy to chemical energy.
Therefore, the complete statements with the most appropriate words in the blanks are well mentioned above.
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What name is given to the collection of traits exhibited by an organism?
a) holotype
b) genotype
c) phenotype
d) morphology
Answer: c) phenotype
Explanation:
group of organisms which focus on energy budgets and recycling of resources (dominated by perennial plants) is called a: a. habitat intensive community b. climax community c. pioneer community d. transfer community e. endpoint community
A group of organisms which focus on energy budgets and recycling of resources is called : b.) climax community.
What is climax community?Climax community is that ecological community where populations of plants or animals remain stable and exist in balance with each other and their environment. Climax community is the final stage of succession, remaining unchanged until destroyed by an event like fire or human interference.
In scientific ecology, climax community is a historic term for a community of plants, animals, and fungi that have reached a steady state through the process of ecological succession in the development of vegetation in an area over the time.
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William found out that bacteria live in oil. Which tatement bet decribe the function of bacteria and their impact on oil
The function of bacteria and their impact on oil can be best described by: (4) Bacteria help increase fertility by decomposing organic matter in the soil.
Bacteria are the prokaryotic organisms that are present everywhere on the Earth. These are single-celled organisms that can be useful as well s harmful for the other living beings. The examples of bacteria are: Salmonella, Bacillus, E. coli, etc.
Organic matter is the large macromolecular carbon based compound that is found in all the living organisms. In fact the feces and waste produced by the living organism is also an organic matter. The bacteria solubilize these organic matter into smaller soluble forms.
The given question is incomplete, the complete question is:
William found out that bacteria live in soil. Which statement best describe the function of bacteria and their impact on soil ?
Bacteria help increase fertility by decomposing organic matter in the soil.Bacteria help increase fertility by loosening soil for root growth.Bacteria reduce fertility by breaking down minerals in the soil.Bacteria reduce fertility by stripping the soil of nutrients.To know more about organic matter, here
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muscles react to stimuli with graded responses. these responses determine how much a muscle will ______ during contraction.
Muscles react to stimuli with the graded responses. these responses are determine how much the muscle will shorten during the contraction.
Muscle contraction is a complex process that requires the interaction of several components of the muscle cell. It is the process by which muscles shorten and produce movement. When a muscle contracts, it shortens and produces muscle strain. This tension is transmitted via tendons to the skeletal system, which then produces movement. The process of muscle contraction begins with the release of a chemical called acetylcholine from the nerve terminal of a motor neuron. This acetylcholine binds to the motor end plate located on the muscle cell. When this happens, the motor end plate opens up channels in the muscle cell membrane called ion channels. These ion channels allow positively charged ions to flow into the muscle cell, thus creating an electrical charge. This electrical charge, called an action potential, travels down the length of the muscle cell.
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what are two examples of stem cells working in adults?
A. New mucus-producing cells are made by a type of cell in the stomach lining
B. Ectodern cells form an outer layer of skin
C. Cells continue to divide to form three germ layer.
D. Unipotent cells produce skeletal muscle cells to repair a damaged muscle
Two examples of stem cells working in adults are:
Ectoderm cells form an outer layer of skin.
Unipotent cells produce skeletal muscle cells to repair a damaged muscle.
What are Stem cells?
Stem cells are a type of cell that has the potential to develop into many different types of cells in the body. They are the building blocks of life and can be used to treat a variety of diseases and injuries. Stem cells can come from embryos, adults, or even be made from other cells in the laboratory.
What are Ectoderm cells ?
Ectoderm cells are embryonic cells that give rise to the outermost layer of the embryo. These cells develop into the epidermis, nervous system, and associated structures, such as the eyes, ears, and parts of the face, including the nose and mouth.
What are Unipotent cells?
Unipotent cells are cells that can only produce a single cell type. These cells are usually stem cells that have been restricted to one type of differentiation and will not be able to change into any other cell type. Unipotent cells are important for research in cell biology, biochemistry, and regenerative medicine.
Therefore, the options are Option B and Option D.
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Explain how cells work together to create an organ system.
Cells work together to create an organ system through the process of differentiation.
What is a Cell?This is referred to as the smallest or simplest unit of life and they work together to form tissues, tissues work together to form organs, and organs work together to form organ systems in the body of organisms.
The process of cell differentiation allows multi-cellular organisms to create uniquely functional cell types and body plans and an example is the cardiac muscle cells which group together to form cardiac muscle tissue, which in turn forms the heart and is therefore the ways in which cells work together to create an organ system.
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what is the purpoes of primers? how do they get removed following dna replication in vivo?how are the primers different during in vivo vs in vitro
The Primer is a short DNA fragment to synthesize the new DNA strands.
The target sequence's flanking region's sequence is complementary to the primers' brief synthetic single-stranded DNA molecules. Any desired base sequence for primers can be produced chemically through the chemical synthesis of these DNA molecules. Primers are over the template by millions of folds since each new DNA strand will start with one. Thus, it is essential to understand the template sequence on each side of the DNA region that needs to be amplified. Biotechnology supply businesses offer commercial DNA polymerases and dNTPs. By extending DNA from the primer's 3' end, the DNA polymerase duplicates DNA and creates a new DNA strand. Similar to cellular replication, there are twice as many DNA molecules at the end of the first cycle. However, with PCR, steps 1-3 are performed repeatedly, typically for 25 to 30 cycles.
Hence, primer is short sequence provided in PCR to initiate polymerization.
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plants synthesize their own food in the form of sugars during the process of photosynthesis. which of the statements describe photosynthesis?
Answer: It is a biological activity that takes place in the chloroplast of plant cells
Explanation: It releases oxygen as it converts carbon dioxide to sugar and produces sugar using the energy from the sunlight
in research with nonhuman primates, which term refers to feelings of concern for others stemming from understanding their feelings?
Anthropomorphism is the feelings of concern for others stemming from understanding their feelings.
Anthropomorphism is when non-human entities are given human characteristics, feelings, or intentions. It is said to be a built-in psychological predisposition in people.The practise of attributing human traits or behaviours to non-human beings, especially animals, is known as anthropomorphism. It is a typical way of viewing and interacting with the environment, however some people are more attracted to it than others.Personification, a similar term, is the attribution of human shape and traits to abstract notions like nations, feelings, and physical phenomena like the seasons and weather.Both have long histories as literary and artistic methods, and traditional fables with anthropomorphized animals are found in most civilizations. Both domesticated and wild animals have frequently been given human emotions and behavioral characteristics.To know more about behavioral check the below link:
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What are the common types of mutations that occur to convert proto-oncogenes to oncogenes?.
Answer:
Point mutation. This mutation alters, inserts, or deletes one or more nucleotides (building blocks of DNA and RNA) in a gene sequence. ...
Gene amplification.
Chromosomal translocation (rearrangement).
What are the common types of mutations that occur to convert proto-oncogenes to oncogenes?.
Amplifications and Hypermethylation of promoter sequences are the common types of mutations that occur to convert proto-oncogenes to oncogenes.
A proto-oncogene is a normal gene that is present in a cell. Numerous proto-oncogenes exist. Each one is in charge of producing a protein essential for cell division, growth, and other functions. These genes often carry out their functions without incident.
However, if a proto-oncogene makes a mistake (mutates), the gene may turn on when it shouldn't. If this occurs, the proto-oncogene may develop into an oncogene, a gene that causes cancer. Cancer develops as a result of uncontrolled cell growth.
A collection of typical genes in a cell make up proto-oncogenes.They contain the data required by your body to create the proteins in charge of encouraging cell division, which allows for cell development, suppressing apoptosis, also known as cell death, which is the process by which cells change their role by inhibiting cell differentiation, For cells to maintain healthy tissues and organs in your body, these processes are all necessary.
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anaphylatoxins stimulate a localized inflammatory response, which includes mast-cell degranulation, vasodilation, and recruitment of lymphocytes and phagocytic cells. what is the purpose of this localized immune response?
In a case whereby anaphylatoxins stimulate a localized inflammatory response, which includes mast-cell degranulation, vasodilation, and recruitment of lymphocytes and phagocytic cells the purpose of this localized immune are all the listed options.
What is the purpose of this localized immune response?It should be noted that one of the purpose of this localized immune is the Mast cells which contain histamine, and this can bnring how the vasodilation can be triggered , which will increase blood flow to an infected area so that higher numbers of white blood cells will be recruited.
Another one is the Serum proteins which contain specific as well as the nonspecific immune effector molecules that can bind up and neutralize the invading pathogen and any toxins.
Therefore, option E is correct.
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missing options:
A.
Mast cells contain histamine, which triggers vasodilation, which will increase blood flow to an infected area so that higher numbers of white blood cells will be recruited
B.
Serum proteins contain specific and nonspecific immune effector molecules to bind up and neutralize the invading pathogen and any toxins
C.
Vasodilation locally increases the temperate of an infected area so that bacterial proteins become denatured
D.
Vasodilation increases tenderness at the site of infection and causes edema (swelling) to that the host is careful not to overuse or tax the infected area
E.
All of the above
Adding or removing a single atom will turn a molecule into a molecule of a different substance. How is combining atoms to form a molecule like mixing ingredients for a recipe? pick the correct option.
Adding or removing a single atom can turn a molecule into a molecule of a different substance, just as adding or removing a single ingredient can change the nature of a recipe. In both cases, the combination of atoms or ingredients determines the characteristics of the final product, such as its chemical or physical properties, taste, or texture.
Just as a recipe specifies the quantities and types of ingredients that should be combined to produce a desired dish, the chemical formula of a molecule specifies the quantities and types of atoms that should be combined to produce a particular molecule. For example, the chemical formula for water, H2O, indicates that two hydrogen atoms should be combined with one oxygen atom to produce a molecule of water.
In the same way that a chef must carefully measure and mix the ingredients in a recipe to produce the desired outcome, a chemist must carefully control the quantities and types of atoms that are combined to produce a particular molecule. Changing the quantities or types of atoms in a molecule, or the quantities or types of ingredients in a recipe, can alter the properties of the final product.
Overall, combining atoms to form a molecule is similar to mixing ingredients for a recipe in that both processes involve the careful combination of specific quantities and types of components to produce a desired outcome.
human hair type is transmitted as an (autosomal) incomplete dominant trait. if curly-haired paul marries straight-haired pam, what percent of their children would have curly hair?
Human hair type is transmitted as an (autosomal) incomplete dominant trait, so if curly-haired Paul marries straight-haired pam, percent of their children that would have curly hair is 0%.
What is an autosomal incomplete dominance?Incomplete dominance is a form of gene interaction where both alleles of gene at a locus are partially expressed, resulting in an intermediate or different phenotype. It is also called partial dominance.
This pattern of inheritance is described as incomplete dominance because neither of the alleles is completely dominant over the other as both alleles can be seen at the same time. For example: allele for red flowers is incompletely dominant over the allele for white flowers, so Red + white = pink.
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8. Which of the following best represents the energy flow
between photosynthesis and
cellular respiration?
a. Sunlight → photosynthesis →→ ATP → cellular
respiration →→ Glucose
-
b. Sunlight → cellular respiration → ATP →
photosynthesis → ADP
c. Sunlight → photosynthesis →→ Glucose → cellular
respiration →→ ATP
d. Sunlight → cellular respiration→ Glucose →
photosynthesis →→ATP
OD
carbohydrates, cellular respiration, ATP, light, photosynthesis, and water best represents the energy flow between photosynthesis and cellular respiration
Plants (including algae and some bacteria) employ sunlight, water, and CO2 during photosynthesis to produce sugars (carbohydrates). This reaction, which takes place in chloroplasts, results in the reduction of CO2 (gaining electrons), oxidation of water (losing electrons), and production of oxygen (O2). The usage of that O2 in cellular respiration follows. Cellular respiration takes place in mitochondria and consumes glucose and oxygen to create ATP, which is the energy source. H2O and CO2 are created.
Photosynthesis is essential to most life on Earth. Plants, microalgae, as well as some types of bacteria carry out the process by capturing solar energy to create oxygen (O2) plus biochemical power is supplied in glucose (a sugar). Consequently, herbivores get this energy from consuming plants, and carnivores get it from eating herbivores.
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the following figure shows the general steps that occur when a researcher uses the crispr-cas9 system to modify a protein-encoding gene in a eukaryotic cell with the goal of modifying the protein product. drag the descriptions of the steps to their appropriate locations on the figure.
A scientific advance has been made thanks to CRISPR-Cas9 editing. Many scientists are interested in this and have successfully edited DNA using this method.
Although the use of guide RNA is not new, it has made great strides in directing caspases toward their target sequences.Although the mutations have been reported, they cannot yet be verified. Although it has been reported that CRISPR-Cas causes single base pair deletions in DNA far from its activity site, which lead to gene impairment, the processes of DNA alterations through CRISPR-Cas have not yet established any form of reliable approach.After CRISPR was used to edit DNA, significant changes were seen in DNA sequences thousands of bases away from the region of action.However, there is currently no experimental data that reveals the specific mechanism.
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Based on what you have learned about global trends in terrestrial ecosystems, what is currently the largest threat to the wet tropical forests in central america?.
Deforestation for coffee plantations and other habitat damage are the biggest threats to the wet tropical forests of Central America.
What distinguishes the terrestrial ecosystem?Terrestrial ecosystems differ from aquatic ecosystems in a number of ways, including the dominance of the detritus chain among the grazing, detritus, and microbial chains, the rarity of the cascading effect of predators on vegetation, the abundance of fungi, and more.
Does Central America contain tropical rainforests?Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, and Panama are among the nations that contain the equatorial region of the Central American rainforest. As opposed to being temperate, the rainforest has a tropical climate, which means it is hot and humid for much of the year.
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What creates the boundaries for the distribution of a trait within a population?
Environment creates the boundaries for the distribution of a trait within a population.
Environmental factors can also cause gene mutations, and the most viable mutations are those that can be passed down across generations. Environmental factors also have an impact on how traits manifest, which has an impact on the probability that a trait will emerge in a population. Gene expression can be changed by environmental circumstances, which can affect traits that are determined by heredity. Natural selection, a crucial evolutionary mechanism, is a slow, long-term shift in the genetic composition of populations.
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Genetic variation among humans is relatively small when compared to other species. Where in the human genome does most of the diversity occur?.
The genetic variations seen in and between populations are known as human genetic variation.
Humans differ genetically from one another. Due to developmental mutations and gene copy-number variation, even monozygotic twins, who arise from a single zygote, may differ genetically. Techniques like genetic fingerprinting rely on individual differences, even between closely related people.
There are 324 million identified variations from sequenced human genomes as of 2017.
A person's genome typically differs from the reference genome by 20 million base pairs, or 0.6% of the total 3.2 billion base pairs, as of 2015.
In contrast to other species, humans are genetically uniform. While a limited number of genetic variations are found more commonly in particular geographic regions or in individuals with ancestry from those places, this variance accounts for the majority of genetic variation.
Genetic variation between populations occurs for at least three reasons. If an allele offers a competitive advantage, natural selection may endow people with an adaptive advantage in a particular environment.
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chemicals called uncouplers can make membranes permeable to small molecules and ions. what effect might uncouplers have on cellular respiration?
Uncouplers may have an adverse effect on cellular respiration, resulting in lower ATP synthesis since the proton gradient would be reduced.
How could uncouplers affect cellular respiration?Increasing the amount of cellular respiration is possible by including an uncoupler (FCCP), which reduces the proton motive force by causing a short circuit of protons on the inner mitochondrial membrane. Substrate oxidation in this condition serves as the primary predictor of oxygen consumption.
How do uncouplers impact the cycle of electron transport?Uncouplers of oxidative phosphorylation prevent the electron transport and phosphorylation processes from coupling, which prevents the production of ATP without disrupting the respiratory chain or ATP synthase (H(+)-ATPase).
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Pathogenic bacteria are likely to multiply rapidly when environmental temperatures are between.
Answer:
20-40
Explanation:
they multiply in an environment at lower temperature
How are these limbs different
Answer:
They all have different functions and different methods of transportation for each of the following limbs.
the binding of atp immediately initiates the sliding of muscle filaments past one another.t or f
True the binding of atp immediately initiates the sliding of muscle filaments past one another.
During muscular contraction, what does ATP bind to?ATP then attaches to myosin, causing it to transition to a high-energy state and freeing the myosin head from the actin active site. ATP can then bind to myosin, resuming the cross-bridge cycle and allowing additional muscle contraction.
When an impulse activates the muscle fibres of a motor unit, it initiates a response between the myosin and actin filaments in each sarcomere. It leads to the beginning of a contraction and the sliding filament idea.
When ATP binds to the myosin head domain, the actin-binding site undergoes a slight conformational change, reducing its attraction for actin and causing the myosin head to release the actin filament.
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1. A potometer is made using a glass U-tube, filled with water and mounted on a
stand. In one end of the U-tube, a shoot of a plant is placed and in the other end, a
pipette is placed which can be used to measure the decrease in water level. The
diagram below shows the potometer being used in an experiment.
Both the potometers are placed in well-lit rooms.
All the other conditions except for the conditions mentioned are the same for both
potometers.
For which of these purposes is a potometer likely to be used?
1. To measure the rate of transpiration
2. To measure the rate of photosynthesis
3. To estimate how long a plan can survive without roots
4. the growth of plants under different conditions.
A potometer is made using a glass U-tube filled with water and is a device used to measure the rate of transpiration that is present in Option 1. It measures the rate of water loss.
What is transpiration?The process of transpiration is one in which water is lost from the plants, and this process is important for the environment as it maintains the water cycle of the ecosystem. Devices are there to measure this, such as the potometer, which measures the water loss by the plant.
Hence, A potometer is made using a glass U-tube filled with water and is a device used to measure the rate of transpiration that is present in Option 1. It measures the rate of water loss.
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Use the figure above to compare the quantity of carbon present in the atmosphere to that present in fossil fuels. What percent of the carbon in the fossil fuel compartment would double the amount if carbon in the atmosphere if it was burned?
0.003 % of the carbon in the fossil fuel compartment would double the amount if carbon in the atmosphere if it was burned
What is the percentage of CO2 in the atmosphere ?It is a chemical compound that is found in the atmosphere naturally. About 0.04 percent (400 parts per million) of carbon dioxide by volume is present in the Earth's atmosphere.
Around 90% more CO2 has been released into the atmosphere since 1970, with emissions from industrial processes and the burning of fossil fuels accounting for about 78% of the total increase in greenhouse gas emissions between 1970 and 2011. The second-largest causes have been agriculture, deforestation, and other changes in land use.
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