The reason for the darker fur on the tail, ears, nose,
and legs of a Siamese cat is
a. incomplete dominance.
b. the activity of a heat-sensitive enzyme involved
in melanin production.
c. quantitative inheritance.
d. epistasis.
e. the presence of different alleles for fur color in
these regions.
Answer: b
You might also like to view...
Which of the following is most likely to have a small protein called ubiquitin attached to it?
A) a cyclin protein, that usually acts in G1, in a cell that is in G2 B) a cell surface protein that requires transport from the ER C) an mRNA leaving the nucleus to be translated D) a regulatory protein that requires sugar residues to function properly E) an mRNA produced by an egg cell that will be retained until after fertilization
Plants maintain higher levels of phytochrome at their growing tips where phytochrome plays important roles in growth responses to light. Phytochrome levels are also high in areas of the plant that are "greening". What does this suggest about the role of phytochrome in these "greening" zones?
A. Phytochrome is absorbing green wavelengths of light. B. In these areas, phytochrome is the first step in the electron transport chain of photosynthesis. C. Phytochrome is facilitating the transcription and translation of photosynthesis related proteins. D. Phytochrome is facilitating the migration of chlorophyll pigments from other areas of the plant. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? words does the question contain and what do they mean? Gather Content · What do you already know about the role of phytochrome in plants? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The function of the enzyme carbonic anhydrase is to
A. convert carbon dioxide to bicarbonate ions. B. convert bicarbonate ions to carbon dioxide. C. both convert carbon dioxide to bicarbonate ions and bicarbonate ions to carbon dioxide. D. convert carbon dioxide to hydroxide.
Your classmate is trying to keep all the facts about biological molecules straight. He asks you to explain how amino acids and proteins are related. What do you tell him?
A) Amino acids are formed by joining together many proteins. B) Proteins are chains of carbohydrates, and amino acids are a type of lipid. C) Proteins are made up of chains of amino acids. D) Proteins are a portion of an amino acid.