Answer:
Bioluminescence is the production and emission of light by a living organism. It is a form of chemiluminescence. Bioluminescence occurs widely in marine vertebrates and invertebrates, as well as in some fungi, microorganisms including some bioluminescent bacteria, and terrestrial arthropods such as fireflies.
Explanation:
Examine a two-gene cross that follows simple Mendelian inheritance of freckles and eyebrow shape between a woman with genotype Mmpp and a man with genotype mmpp. How many phenotypes are possible in their offspring and in what ratio?
a. 4 phenotypes: 9:3:3:1
b. 2 phenotypes; 1:1
c. 3 phenotypes; 8:4:4
d. 3 phenotypes; 1:2:1
The number of possible phenotypes in the Mendelian cross would be 2 in the ratio 1:1.
Phenotypic ratiosFirst, let us look at the result of crossing the two genotypes Mmpp and mmpp.
Mmpp will give the gametes Mp, Mp, mp, and mp
mmpp will give the gametes mp, mp, mp, and mp
The two sets of gametes can thus be lined up on both axes of the Punnet's square as shown in the attached image.
Genotypes of the offspring: 8 Mmpp and 8 mmpp
Since the two genes follow a simple Mendelian inheritance pattern, the 2 genotypes automatically equate to 2 phenotypes in the ratio 1:1.
Hence, the correct option is b.
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using the scientific method, a(n)_ must be tested as the focus of any experiment
Brainly for the first one to answer! Answer in a short paragraph please !
What do you think of the world's hugely increasing energy needs?
Answer:
I like it, it is good
Explanation:
I like it
Why do scientists use punnet squares
Answer:
The diagram is used by biologists to determine the probability of an offspring having a particular genotype.
How do naturally occurring hormones affect plants? They ripen fruits, prevent plants from being eaten by insects, and help plants collect water from soil. They start lateral leaf growth, help plants collect water from soil, and speed up the growth of plant cells. They keep buds inactive in winter, speed up the growth of plant cells, and ripen fruits. They speed up the growth of plant cells, ripen fruits, and prevent plants from being eaten by insects.
Answer:
c
Explanation:
Naturally occurring hormones affect plants as they speed up the growth of plant cells, ripen fruits, and prevent plants from being eaten by insects, which is the last option.
What is a plant hormone?Naturally occurring hormones in plants, also known as plant growth regulators, play a crucial role in regulating various physiological processes in plants. There are five main types of plant hormones: auxins, gibberellins, cytokinins, abscisic acid, and ethylene. Each of these hormones affects plant growth and development in different ways. Auxins, for example, are primarily responsible for cell elongation and the promotion of lateral growth in shoots. They also play a role in root growth and phototropism, which is the movement of plants towards or away from light sources.
Hence, naturally occurring hormones affect plants as they speed up the growth of plant cells, ripen fruits, and prevent plants from being eaten by insects, which is the last option.
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A large __________ __________ can increase the effectiveness of exchange surfaces in plants and animals. What two words complete the sentence?
Answer:
Surface area
The effectiveness of exchange surfaces in plants and animals is increased by having: A large surface area. Have a nice day!
Which type of air is largest as it expands?
A. Cold Air
B. Dry Air
C. Frigid Air
D. Warm Air
Answer:
Warm air (greater capacity than cold), dry air (greater deposition takes place to form frost. Haunted house decreases. The fog that forms along the Pacific coastline of North America is a or an temperature within a gas as the gas expands
What is a protein in red blood cells that binds with oxygen and carries it around the body?
Answer:
Hemoglobin
Explanation:
What are examples of negative feedback
Answer:
It depends on what the negitve stuff is.
Explanation:
Answer:
A thermostat switching on a heater when the temperature gets low.
A person starting to sweat to cool down during exercise.
Explanation:
How do enzymes relate to photosynthesis and cellular respiration?
Answer:
Enzymes are proteins that act as catalysts for reactions, such as those in cellular respiration. They increase the likelihood of a reaction by lowering the energy required for a reaction to occur. In the process, enzymes are left unchanged by the reaction. ... The resulting molecules from the reaction are called products.
Explanation:
pls help !!!!!!!!!!!!!
I have attached my resume for your reference and
Which is a disaccharide?
1. glucose 2. fructose 3. sucrose 4. cellulose
Answer:
surcrose
Explanation:
I googled it
Answer:
3. sucrose
Explanation:
what happens to the rate of photosynthesis of a plant if we decreased the light intensity it receives?
Answer:
Required Answer:- A plant cannot photosynthesise very quickly without enough light.Eventhough There is plenty of Carbon dioxide,water and suitable temperature is available.Which are characteristics of all living things? Select three options.
grow and develop
make their own food
are made of many cells
respond to stimuli
can reproduce
Answer:
Grow and develop, respond to stimuli, and can reproduce
Explanation: The other random humans are wrong and I just did it on edge 2020
Answer:
The characteristics shared by all living things are that grow and develop, respond to stimuli and can reproduce.
Explanation:
Living things are different, and despite this, they have characteristics in common, since all are able to grow and develop, respond to external stimuli, and can reproduce themselves.
Growth and development: it is a process that occurs in stages and depends on the evolution of the form and functions of the organism.Response to stimuli: it is a function that is called relationship, through which an organism is able to perceive the stimuli of its environment and respond to them.Reproduction: this is the function in which other living beings with the same morphological and functional characteristics can be obtained from a living being.Making their own food and being made of many cells are characteristics that are not shared by all living things, since they correspond to autotrophic organisms and pluricellular organisms only, respectively.
Electron micrographs following freeze fracture of the plasma membrane indicate that
Answer:
Electron micrographs following freeze-fracture of the plasma membrane indicate that: the membrane is a phospholipid bilayer.
I am arranged as a double helix, and my shape is often described as a “twisted ladder”
DNA ONLY
RNA ONLY
BOTH DNA AND RNA
Answer:
hi you wasted one of the answers i had for my question so im returning the favor :)
Explanation:
Help need now!
(1) Define homeostasis.
(2) What are the two ways a substance can move through a cell’s membrane?
(3) What is passive transport? Will particles move to an area of higher or lower concentration?
(4) How do large molecules move across the cell membrane through facilitated diffusion?
(5) Describe what happens during osmosis.
(6) What are aquaporins?
(7) What is active transport?
(8) Why is energy needed for active transport? Will particles move to an area of higher or lower concentration?
(9) Describe endocytosis.
(10) Describe exocytosis.
Answer: 1Homeostasis is the ability to maintain a relatively stable internal state that persists despite changes in the world outside. All living organisms, from plants to puppies to people, must regulate their internal environment to process energy and ultimately survive. 2Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane. 3In passive transport, substances simply move from an area of higher concentration to an area of lower concentration, which does not require the input of energy. Concentration gradient, size of the particles that are diffusing, and temperature of the system affect the rate of diffusion. 4In facilitated diffusion, molecules diffuse across the plasma membrane with assistance from membrane proteins, such as channels and carriers. A concentration gradient exists for these molecules, so they have the potential to diffuse into (or out of) the cell by moving down it.5: Osmosis: In osmosis, water always moves from an area of higher water concentration to one of lower concentration. ... Water has a concentration gradient in this system. Thus, water will diffuse down its concentration gradient, crossing the membrane to the side where it is less concentrated. 6Aquaporins, also called water channels, are channel proteins from a larger family of major intrinsic proteins that form pores in the membrane of biological cells, mainly facilitating transport of water between cells. 7In cellular biology, active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement.8During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.9Endocytosis definition and purposes. Endocytosis is the process by which cells take in substances from outside of the cell by engulfing them in a vesicle. ... Endocytosis occurs when a portion of the cell membrane folds in on itself, encircling extracellular fluid and various molecules or microorganisms.10Exocytosis describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside of the cell, as shown in Figure below. Exocytosis occurs when a cell produces substances for export, such as a protein, or when the cell is getting rid of a waste product or a toxin
Explanation:
please help! 15 pointss!!
3.Looking at the heat circulation in the ocean, what might happen to it if large amounts of cold water are added in the Polar Regions as glaciers melt?
4.Based on your response above, what effect could this have on the climate in your area?
Answer:
1. In the given question, if large amounts of water are supplemented in the Polar Regions as glaciers melt then the warm water will exhibit a more difficult time in flowing towards north.
2. The effect it could impart in the area is that the local temperature would increase more.
A frog has more offspring than can survive on available resources.
Which behavior is this an example?
competition
overpopulation
variation in a population
artificial selection
Answer:
B overpopulation
Explanation:
This behavior is this an example of overpopulation.
Overpopulation exacerbates many social and environmental factors, including overcrowded living conditions, pollution, malnutrition and inadequate or non-existent health care.What are the consequences of overpopulation?Depletion of Natural Resources. Degradation of Environment. Conflicts and Wars.Rise in Unemployment.High Cost of Living.What is overpopulation?Overpopulation refers to the exceeding of certain threshold limits of population density when environmental resources fail to meet the requirements of individual organisms regarding shelter, nutrition and so forth. It gives rise to high rates of mortality and morbidity.
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Question 11 (4 points)
Nucleotides are the units found in nucleic acids and are composed of a phosphate, a sugar, and a nucleotide base. Look at the picture below.
The following are the nucleotide bases found in the nucleotides that make up DNA in living things. Their names are show as the following
I’ll give BRAINLIEST
letters. A, T, G, C. How would the DNA of a human compare to the DNA of a duck?
Answer:
Everything uses the same nucleotides as the building blocks of it's DNA for instance we have the same letters used in our genetic code as duck do, but they're arranged in different orders or "sequences" therefore making it completely different. The same concept applies when comparing two humans DNA as well.
Explanation:
Hope this helped
What is the genotype of a person with type A blood, who had a father with type O blood?
Question 5 options:
A: IAIB
B: IAIA
C: IAi
D: ii
Answer:
C
Explanation:
Father/mother must each donate a blood gene to the child. Father must have a genotype of ii because O blood is recessive. Thus, the kid must have one O type gene. However, the kid has A type blood overall, so the kid must have an A (dominant) gene as well. Thus, the answer is IAi.
What conclusion can you make about the skeletal structure of these two organisms? A. They share a common ancestor, but they’re different species. B. They’re the same species. C. They’re different species with no evolutionary relationship. D. The four-legged organism directly evolved from the two-legged organism.
Answer:
a
Explanation:
a
It's is A. They share a common ancestor, but they're a different species.
Why do we need classification
What is the phenotypic ratio that you would expect to find in the
offspring that result from a cross of 2 heterozygotic individuals. Assume
that one allele is dominant and the other is recessive. (phenotypic ratio
is the ratio that you expect between the different offsprings' phenotypes
- I would not give this definition on the exam)
Answer:
Answer:
The seven characteristics that Mendel evaluated in his pea plants were each expressed as one of two versions, or traits. Mendel deduced from his results that each individual had two discrete copies of the characteristic that are passed individually to offspring. We now call those two copies genes, which are carried on chromosomes. The reason we have two copies of each gene is that we inherit one from each parent. In fact, it is the chromosomes we inherit and the two copies of each gene are located on paired chromosomes. Recall that in meiosis these chromosomes are separated out into haploid gametes. This separation, or segregation, of the homologous chromosomes means also that only one of the copies of the gene gets moved into a gamete. The offspring are formed when that gamete unites with one from another parent and the two copies of each gene (and chromosome) are restored.
Hope this is helpful for u
the process of gradual and orderly change from one condition to another is called
Answer:
Evolution is a gradual change in inherited characters of organisms over a successive generation and thereby generating variations at each level of biological organization. Lamarkism explains evolution as an inheritance of acquired characters under influence of needs as posed as changing environmental conditions.
Explanation:
In a monohybrid cross, if the gene for tall (T) plants was incompletely dominant over the gene for short (t) plants, what would be the predicted result of crossing an intermediate (Tt) plant with a tall (TT) plant? (Hint: You may want to complete a Punnett square.) 50 percent tall, 25 percent intermediate, 25 percent short 25 percent tall, 50 percent intermediate, 25 percent short 50 percent tall, 50 percent intermediate 100 percent intermediate
Answer:
It would be 50/50
Explanation:
If you do appointment square with TT and Tt you would have two sets of TT and two sets of Tt
Which shows the correct order of processes for fungi to reproduce sexually?
A genetically unique fungus is produced, a spore forms, and hyphae exchange genetic material.
A spore forms, a genetically unique fungus is produced, and hyphae exchange genetic material.
Hyphae exchange genetic material, a spore forms, and a genetically unique fungus is produced.
A spore forms, hyphae exchange genetic material, and a genetically unique fungus is produced.
Answer:
A
Explanation:
sorry im really bad at explaining things TwT its just the order i believe, i had to do a project on this a while back, and i forgot if i got this right, sooo i hope its right
Answer:
C
My teacher posted a Quizziz and it said C
Explanation:
In the process of transcription, how does the mRNA strand relate to DNA?
a) The mRNA strand is complementary to the DNA strand; however, uracil instead of adenine is paired with thymine.
b) The mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.
c) The mRNA strand mimics the DNA strand; however, uracil is the 5th based used in the sequence.
d) The mRNA strand is an exact copy of the DNA strand.
b) the mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.
In the process of transcription, the mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.
TRANSCRIPTION:
Transcription is the first stage of gene expression which involves the synthesis of mRNA molecule from a DNA template. The double-stranded DNA molecule is separated and each single strand serves as a template for synthesizing a complementary mRNA strand. Adenine pairs Thymine while Guanine pairs with Cytosine in the DNA molecule but in the mRNA strand, uracil instead of thymine is paired with adenine. Therefore, in the process of transcription, the mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.Learn more at: https://brainly.com/question/9339389?referrer=searchResults
what would happen if homogenisation and pasteurisation steps are omitted during the production of yoghurt
Answer:
The correct answer would be - there could be microorganisms like bacteria present and consistency or texture would be not as expected.
Explanation:
Pasteurization is more of a safety process that helps in the elimination of microorganisms like bacteria and this process involves heating the liquid and cooling it down immediately to a very low temperature.
Homgenisation is the process that makes liquid particles evenly small and distributed equally which gives it consistency or texture and taste. Without these two processes, yogurt will have bacteria and inconsistency.
An organism with a dominant allele for a particular form of a trait only exhibits the trait sometimes. Please select the best answer from the choices provided T F
Answer:
False. An organism with a dominant allele for a particular form of a trait always exhibits that trait.
Explanation:
According to Mendelian genetics, a dominant allele for a given characteristic will always be expressed in the phenotype, regardless of whether its allelic formula is with both dominant alleles or heterozygous.
In the heterozygous form, the dominant allele is able to avoid the expression of the recessive allele, expressing the phenotype. The recessive allele will only be visible in the genotype when both alleles in the pair are recessive.
In non-Mendelian inheritance, however, there are cases where the dominant allele is expressed in conjunction with another allele, such as co-dominance. In intermediate inheritance different alleles —dominant and recessive— are combined and expressed as a combined characteristic.