Violet flower color is a dominant trait.
In a pea plant, white flowers with genotype vv and violet flowers with genotype VV are crossed. The V allele is the dominant one. The gametes that are produced are V and v. Vv will therefore be created following their fertilization in the F1 generation. Due to V (violet) being dominant to v (white), Violet will be the phenotype in a heterozygous state.
According to Mendel law of dominance in the crossing of parents, which is true for a particular trait, only one trait will be expressed in the phenotype. But among hybrid parents, the offspring exhibits the dominant characteristic. So, here also violet flowers are observed in F1 generation which shows the dominant character of violet flowers.
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ribosomes provide the scaffolding on which trnas interact with mrna during translation of an mrna sequence to a chain of amino acids. a ribosome has three binding sites, each of which has a distinct function in the trna-mrna interactions.
The three binding site of ribosomes are: iE- site empty, P- site AUA with three amino acids and A- site UCC with one amino acid
Ribosome through the provision of scaffolding, during the process of amino acid sequencing helps in the interaction of tRNA with mRNA. The ribosome has three binding site and each of the binding sites all have distinct function in tRNA- mRNA interactions.
During the first step tRNA binds to the A site of ribosome, then during the second step formation of the peptide bonds where tRNA binds with A site from P site. The third and last stage which is movement of the mRNA through the ribosome in which tRNA carrying the growing polypeptide shifts to the P site.
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Describe the pathway taken by these molecules of carbon dioxide from the muscle cells to the blood
Explanation:
The blood can transport carbon dioxide in three different ways. Plasma proteins or haemoglobin hold it in place, it is dissolved directly in the blood, or it can be converted into bicarbonate.
Carbon dioxide is primarily transported by the bicarbonate system. The carbon dioxide diffuses into the red blood cells. Inside, carbonic anhydrase converts carbon dioxide into carbonic acid (H2CO3), which is subsequently hydrolyzed into bicarbonate (HCO−3) and H+. The H+ ion binds to haemoglobin in red blood cells, and bicarbonate is transported out of the red blood cells in exchange for a chloride ion. It is called the chloride shift.
The bicarbonate leaves the red blood cells and enters the blood plasma. The lungs transport bicarbonate back into the red blood cells in exchange for chloride. The H+ dissociates from haemoglobin and combines with bicarbonate to form carbonic acid with the help of carbonic anhydrase, which then catalyzes the reaction to turn carbonic acid back into water and carbon dioxide. As a result, carbon dioxide is expelled from the lungs.
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Salivary amylase is an enzyme that begins breaking down carbohydrates while the food is still in the mouth. Once the food passes into the stomach, what happens to the salivary amylase?.
Answer:Saliva contains special enzymes that help digest the starches in your food. An enzyme called amylase breaks down starches (complex carbohydrates)
Explanation:
Lightning strikes are unpredictable because
Lightening is so unpredictable because of the fact that areas with a high potential for electric energy within a given thunderstorm that are necessary to generate lightening are continuously changing as the storm progresses. Therefore the path that a bolt of lightening will take is almost completely random.
quizlet digeorge syndrome results in greatly decreased t cell numbers and function and is evidenced by abnormal development of facial features that are controlled by the same embryonic pouches; these include low-set ears, fish-shaped mouth, and other altered features.
Digeorge syndrome results in greatly decreased t cell numbers and function and is evidenced by abnormal development of facial features that are controlled by the same embryonic pouches; these include low-set ears, fish-shaped mouth, and other altered features.
What is digeorge syndrome?
Digeorge syndrome is a defective condition that appears at birth stage due to deficiency of the T-cells and it also indicates some serious lifelong problems including learning difficulties and heart defects in children.
This medical problem is mostly found in children who suffer from defects like defective immune system, low calcium levels in blood and also show some emotional and behavioral issues.
Moreover, the symptoms of abnormal facial features include hooded eyes, enlarges nose-tip and long face, a small groove in upper lip as well.
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The complete question is:
A 5-year-old male presents with low-set ears, a fish-shaped mouth, and involuntary rapid muscular contraction. Laboratory testing reveals decreased calcium levels. Which of the following diagnosis is most likely?
a. B-lymphocyte deficiency b. T-lymphocyte deficiency c. Combined immunologic deficiency d. Complement deficiency
If glucose is the sole energy source for cellular respiration in an animal, what proportion of the carbon dioxide exhaled is derived from oxidation of pyruvate to acetyl coa?.
The proportion of the carbon dioxide exhaled derived from the oxidation of pyruvate to acetyl CoA is 1/3.
Pyruvate is produced by glycolysis in the cytoplasm and its oxidation takes place in the mitochondrial matrix before chemical reactions begin, pyruvate enters the mitochondrion crossing the inner membrane and arriving at the matrix.
Pyruvate + NAD⁺ + CoA-SH ⇒ acetyl-CoA + NADH + CO₂
This is the reaction of the conversion of pyruvate into acetyl CoA.
1 molecule of pyruvate is converted into 1 molecule of carbon dioxide.
Also, 2 molecules of pyruvate are converted into 2 molecules of carbon dioxide (as glucose on glycolysis yields 2 molecules of pyruvate).
Acetyl-CoA also contributes to the citric acid cycle and generates two molecules of CO₂.
Pyruvate thus generates a total of 3 molecules of CO₂, whereas glucose generates 6 molecules of CO₂ (as glucose on glycolysis yields 2 molecules of pyruvate)
Thus, Fraction = 2/6 = 1/3.
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BIOLOGY!!
THE JOURNEY OF A FOOD PARTICLE THROUGH THE CELL
select the true statements concerning tracheids. check all that apply tracheids are responsible for anchoring the plant to a substrate.tracheids are responsible for anchoring the plant to a substrate. pterophytes lack tracheids but have euphylls.pterophytes lack tracheids but have euphylls. without tracheids colonization of land would not have been possible.without tracheids colonization of land would not have been possible. all of the large dominant extant land plants are tracheophytes.all of the large dominant extant land plants are tracheophytes.
The true statements about tracheids are: tracheids are responsible for anchoring the plant to a substrate; pterophytes lack tracheids but have euphylls, and; without tracheids colonization of land would not have been possible.
Tracheids are one of the components of the vascular tissue called xylem. It is made up of dead cells. It is an elongated structure that has tube-like appearance. It is involved in the conduction of water and minerals.
Pterophytes are also called the pteridophytes that were the first vascular terrestrial plants. These are spore producing plants that have no flowers or seed. The example of pteridophytes are Marsilea, Azolla, Salvinia, etc.
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What is Riccia?
Ty... ಠ∀ಠ
Riccia is a bryophyte.
Riccia is a genus of liverworts within the order Marchantiales. these vegetation are small and thalloid, that isn't always differentiated into root, stem and leaf.
Riccia is a bryophyte. Bryophytes have sporophytes which increase on the gametophyte.it's far formed after syngamy and is dependent on the gametophyte for vitamins. A based sporophyte is a function characteristic of bryophytes
The genus Riccia (liverworts) are small thalloid flora that aren't differentiated into roots, stems and leaves. they're dichotomously branched and shape rosettes. they're typically monoecious and their sexual organs are antheridia and archegonia. Asexual replica is by the mode of spores.
Riccia, genus of liverworts (small, creeping flowers) in the order Marchantiales, widely distributed all through the world.
Riccia fluitans is the most effective really aquatic liverwort in Florida. plants were accrued from scattered locales inside the northern, central, and southern areas. not like most different liverworts, it floats freely in tangled clumps or mats below the water floor.
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What is the best describes the graphs
The statement that best describes the graph is that the variables have a direct relationship. That is option B.
What is direct relationship of variables?Variables are said to be in a direct relationship when the increase of one variable leads to the increase of the other or when the decrease of one variable leads to the decrease of the other.
For example, the relationship between volume and temperature is a direct relationship because of the following reasons:
The graph is a straight line graph,The graph intercepts at the origin (0,0)Therefore, the graph shows a direct proportional relationship between the volume and the temperature.
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if rnase were heated to twice its tm in the absence of β-mercaptoethanol and then cooled to 4 °c, it would be in what state? choose one: a. random coil b. native state c. partially unfolded intermediate d. denatured
The correct answer [b] native state
Proteins are denatured by excessive heat. RNase will refold, though, because the disulfide links are still intact. Most proteins can't accomplish this.
What do you mean by protein?Large biomolecules and macromolecules known as proteins are made up of one or more extended chains of amino acid residues. Among many tasks that proteins carry out in living things include catalyzing metabolic processes, replicating DNA, reacting to stimuli, giving cells and organisms structure, and moving molecules from one place to another. The primary way that the proteins differ from one another is in the order of their amino acids, which is determined by the nucleotide sequence of their genes and typically causes a protein to fold into the certain 3D structure that controls its activity.
A polypeptide is an ordered sequence of amino acid residues. At least one lengthy polypeptide is present in every protein. Less than 20–30 residue polypeptides are frequently referred to as peptides and are rarely thought of as proteins. Peptide bonds and nearby amino acid residues hold the individual amino acid residues together. The sequence of a gene, which is encoded in the genetic code, determines the arrangement of amino acid residues in a protein.
The genetic code typically only defines the 20 conventional amino acids, but in some organisms, it may also include selenocysteine and—in some archaea—pyrrolysine. The residues in a protein are frequently chemically altered by post-translational modification shortly after or even during synthesis, which modifies the physical and chemical characteristics, folding, stability, activity, and ultimately the function of the proteins. Non-peptide groups, often known as cofactors or prosthetic groups, are sometimes added to proteins. Additionally, proteins can cooperate to carry out certain tasks, and they frequently join forces to create stable protein complexes.
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between each presynaptic and postsynaptic neuron is a that is the fluid-filled space between them. each presynaptic neuron releases that binds with receptors in the segment of a postsynaptic neuron.
Between each presynaptic and postsynaptic neuron is a Synaptic cleft that is the fluid-filled space between them. Each presynaptic neuron releases a Neurotransmitter that binds with receptors in the Postsynaptic segment of a postsynaptic neuron.
The gap between the pre-and postsynaptic cells, also known as the synaptic cleft or synaptic gap, is around 20 nm (0.02 ) broad. Rapid changes in neurotransmitter concentration are made possible by the cleft's tiny volume. The primary purpose of the synaptic cleft is to create a place for the chemical transfer of nervous system information. These signals can also be regulated thanks to the synaptic cleft.
A postsynaptic neuron sends signals away from the synapse, whereas a presynaptic neuron sends signals toward a synapse. The synapse, a juncture where the terminal part of the axon contacts another neuron, is where information is transmitted from one neuron to another.
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Glycolysis occurs in all living cells. Which row correctly identifies the cell
structure involved and the products of glycolysis respectively?
A. mitochondria: 36ATP, CO₂, H₂O
B. cytoplasm: 2ATP, pyruvate, NADH
C. mitochondria: 2ATP, pyruvate, NADH
D. cytoplasm: 36ATP, CO₂, H₂O
Glycolysis occurs in all living cells. The location and products of glycolysis in the cell are: (B) cytoplasm: 2ATP, pyruvate, NADH.
Glycolysis is also called the EMP pathway. It is common to all the organisms either aerobic or anaerobic. This occurs in the cytoplasm of the cell. The process does not require oxygen and is a composed 10 steps of chemical reactions that ultimately form 2 molecules of pyruvate.
NADH is a coenzyme that participates in the various process of metabolism. It stands for Nicotinamide Adenine Dinucleotide (NAD) + Hydrogen (H). Its key role is to synthesize energy for the body.
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Mark is diagnosed with the following symptoms hypertension, high pulse rate, fever, diaphoresis, dry mouth, nausea tingling of both hands, short of breath and chest feeling tight. which possible conditions might he be suffering from?
Mark could possibly be suffering from Ischemic Heart Disease.
What is Hypertension?A persistent medical disease called hypertension, often known as high blood pressure, causes the condition in which the blood to be greater than it should be. The heart must work harder than usual to pump more blood through all the blood arteries in this situation.
Based upon what the heart is doing, the pressure within the arteries varies. The pressure rises as the heart pumps blood through the arteries by contracting. The pressure drops when the heart unwinds. Systolic blood pressure is the maximum pressure recorded during a blood pressure reading. Diastolic blood pressure is the lowest pressure.
Two numbers are used to represent blood pressure. For instance, the human's systolic blood pressure in the image to the right was 158. They had a 99 systolic blood pressure reading.
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What is the importance of subscripts when writing a chemical equation? (3 points)
Which of these battles marked the beginning of the American Revolution?
Battle of Bunker Hill
Battles of Lexington and Concord
Battle of Quebec
Siege of Boston
Answer: The Battles of Lexington and Concord
Explanation: The Battles of Lexington and Concord on 19 April 1775, the famous 'shot heard 'round the world', marked the start of the American War of Independence
I'm learning it yesterday LOL
Answer: Battles of Lexington and Concord
Explanation:I did this quiz if you don’t believe here is the proof
Which statement explains how fertilizers impact an ecosystem
Answer: Fertilizers kill off important nitrogen fixing bacteria.
Explanation: uhope that helped you didnt put the statements "Which statement explains how fertilizers impact an ecosystem"
How did later
scientists adjust Hutton's law
of uniformitarianism?
Answer:
What impact did Hutton's findings have on other scientists?
Hutton urged additional research into Earth's past among other scientists. What is one technique to study the history of Earth? to establish how rock structures and strata were produced.
Explanation:
i hope that helps!!
What is metabolism ?
Ty :))
Answer:
Metabolism is how your body processes food, sugar, and everything you know. The higher your metabolism, the skinnier you are.
Explanation:
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1. The diagram compares diffusion of sugar
molecules and osmosis. Explain the
difference between osmosis and diffusion in
cells.
Sugar
molecules
Lipid bilayer
(cell membrane)
Outside c
Inside cell
The difference between Osmosis and Diffusion is: -
Osmosis- Plants can able to take in water from the soil via osmosis. Water seeps into the plant's roots because they have a higher concentration of solutes than the soil around them. Osmosis also affects guard cells in plants. These are cells which open and close on the leaf's underside to permit gas exchange via plasma membrane.
Diffusion- A substance diffuses when it moves from the a region of high concentration to one with a lower concentration. When particles in gases and liquids randomly collide and disperse, diffusion takes place. For living things, diffusion is a crucial mechanism because it governs how molecules enter and exit cells.
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Which claim is most likely based on pseudoscience?
Those claims which are not supported by scientific data are most likely to be based on pseudo science.
Other characteristics that help you distinguish between science and pseudoscience are:
Is not falsifiable It cannot be shown to be incorrect. strongly reliant on anecdotes:Personal experiences and testimonies make up the majority of the evidence.uses supporting evidence while disregarding or downplaying opposing evidence.Technobabble is the use of words that appear scientific but are improperly or illogically employed.Lacks a believable mechanism: Given what is known, it is impossible to explain how the claim may operate.Refuses to adapt: Doesn't improve or self-correct.exaggerates or makes outlandish claims: without enough support, makes enormous benefits promises.Confesses certainty: Mentions "evidence" and conveys ideas with total assurance.Demonstrates logical fallacies: Arguments contain logical fallacies. inadequate peer review:Prevents the scientific community from conducting a critical analysisClaims there is a plot to stifle their ideas: Scientific community criticism is a plotTo know more about pseudo science visit:
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Answer: Seeds should be planted during specific moon cycles to achieve their potential.
Explanation:
The process occurring at the sensory receptors that converts physical energy into coded neural activity that the nervous system can process is called __________. a. thermoreceptor processing b. cerebral cortex control c. sensory transduction d. accessory restructuring please select the best answer from the choices provided a b c d
The process occurring at the sensory receptors that convert physical energy into coded neural activity that the nervous system can process is called c. sensory transduction
In the field of science, we can define sensory transduction as a process by which a change in the physical environment is recognized by the sensory receptors. This information is changed into electrical signals that are transported along the neurons. The neurons transmit these action potentials to the CNS which interprets it and sends signals for producing a response through the effector neurons.
The sensory receptors detect any kind of environmental change and the physical energy of the neurons changes into a neural activity that is initiated by the nervous system in recognition of this change by the sensory receptors.
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At the end of the electron transport chain, where is the light energy that was absorbed and converted by chlorophyll stored?.
At the end of the electron transport chain, the light energy is stored in ATP and NADPH molecules.
What are the steps of the electron transport chain reaction?In Photosystem II, chlorophyll is used to store radiant energy.
The energy level of the electrons provided by the water molecules increases when the pigment molecules absorb light.
The excited electrons travel from Photosystem II to Photosystem I at a lower energy level via the electron transport chain.
New electrons are taken out of the water molecules to replace the excited electrons as they leave photosystem II.
The photosystem I electrons are transferred to another electron acceptor by the absorption of light energy, where they are then transported back and used to create NADPH molecules.
As electrons leave Photosystem I, new electrons from Photosystem II enter to take their place.
Hydrogen ions are still present in the thylakoid lumen after the water molecule disintegrates, and the ATP synthase pumps them to the stroma.
ATP molecules are made using the energy that has been released.
Hydrogen ions go back from the stroma to the thylakoid compartment.
Therefore, at the end of the electron transport chain, the light energy is stored in ATP and NADPH molecules.
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Atoms transfer from the non-living portions of our environment to the living parts of our environment through the _____.
A. air cycle
B. food chain
C. rock cycle
D. phosphorous cycle
A population of mice in a meadow is growing in a pattern of logistic growth. Arrange these events in the order in which they occur, with the first event on top and the last event on the bottom. Not all of the events will be used.
The population increases exponentially.
The population fluctuates near the carrying capacity.
The rate of population increase begins to slow down.
Answer:
1. The population increases exponentially
2. The rate of population increase begins to slow down
3. The population fluctuates near the carrying capacity
Explanation:
The population usually fluctuates exponentially but as the population grows beyond the carrying capacity, the population starts settiling.
a claim, evidence , and reasoning.
An explanation, according to the Claim, Evidence, Reasoning (CER) model, consists of: A claim that answers the question. Data from students provides evidence. Reasoning using a rule or scientific principle to explain why the evidence supports the claim.
What exactly is evidence in biology?Biologists use a variety of evidence types to track evolutionary changes over long time periods. Homologous physical features shared by species, for example, can provide evidence for common ancestry (but we have to be sure they are really homologous, and not the result of convergent evolution).
Preservation of biological evidence from crime scenes is critical because DNA can provide the best evidence of innocence - or guilt - when a case is reviewed. Without the biological evidence, none of the nation's more than 350 DNA exonerations would have been possible.
Any biological sample, including liquid blood or bloodstains, liquid saliva or saliva stains, and liquid semen or dried semen stains (including from vasectomized males) deposited on virtually any surface; genital/vaginal/cervical samples collected on can be questioned or unknown.
As a result, the Claim, Evidence, Reasoning (CER) model states that: A claim that answers the question
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the scapula and the clavicle generally move as a unit, and their only bony link to the axial skeleton is provided by the clavicle’s articulation with the .
the scapula and the clavicle generally move as a unit, and their only bony link to the axial skeleton is provided by the clavicle’s articulation with the sternum.
All of the limb bones as well as the bones that connect each limb to the axial skeleton are part of the appendicular skeleton. The pectoral girdle is made up of the bones that connect each upper limb to the axial skeleton (shoulder girdle). The scapula and clavicle are the two bones that make up this. On the front of the shoulder, on the S-shaped collarbone, is the clavicle. It is connected to the sternum of the thoracic cage, a component of the axial skeleton, near its medial end. Just above the shoulder joint, the clavicle's lateral end articulates (joins) with the scapula.
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2. Imagine that you arrived on the island before the tree
populations were extinct, but after the tree populations had
started to decline. Suggest a management plan that could have
helped the Easter Islanders save the tree populations from
extinction.
Answer:
Ecosystem collapse
Explanation:
Scientists have proven that the island was covered by forests until the 17th century. It's believed the trees were cut down by the ancestors of today's Easter Islanders in order to transport the giant stone statues - the Moai - as well as to build canoes, houses and fires to burn the dead.
Answer the Question Below...
Are lungs hollow?
A Name the following:
1. The vein that carries oxygenated blood.
2. A lymphatic organ.
3. The protein produced by certain white blood cells in response to a foreign substance.
4. The contraction phase of the heart.
5. Iron pigment present in erythrocytes.
Answer:
1.pulmonary veins. 2.spleen...
3.antibody 4.systole. 5.haem
Explanation: 1. Veins generally has the role carrying deoxygeneted blood but in our body we have one vein that carries oxygeneted blood ,the important fact to remember is veins take blood into the body .So the vein that carry oxygeneted blood will also carry blood into the heart from lungs and the opening of heart is the left auricle.
2. Spleen is the lymphatic organ close to armpit which helps in defence to body and produces lymph
3.antibody - antibodies are produced by cells of WBC against foreign entity called antigen.
4.systole- the stage of contracted heart is systole and relaxed heart is diastole.
5.heam - the answer is haem because haem means iron and iron imparts redness to blood plasma ,and with globin it form haemoglobin.