An X-linked recessive gene (c) produces red-green
color blindness. A normal woman whose father was
color blind marries a color-blind man.
(a) What are the possible genotypes for the mother
of the color-blind man?
(b) What are the possible genotypes for the father of
the color-blind man?
(c) What are the chances that the first son will be
color blind?
(d) What are the chances that the first daughter will
be color blind? What will be an ideal response?
Answer: (a) Cc or cc, (b) CY or cY, (c) 1/2, (d) 1/2
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A medical researcher is trying to develop a diagnostic technique for a disease which is characterized by replication of a particular chromosomal region. What would be the most appropriate technique?
A. FISH B. Gene chip C. Genome sequencing D. White blood cell count Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about FISH and gene chip diagnostics? 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?
Phenotypically identical bacteria
A. look the same. B. are genetically exactly the same. C. may be told apart by DNA sequence analysis. D. may not be told apart by any means. E. look the same AND may be told apart by DNA sequence analysis.
What first happens to the two-carbon molecule, acetyl CoA, as it enters the Krebs cycle?
A. It joins with pyruvate to form a four-carbon sugar. B. It joins with another acetyl CoA molecule to form a six-carbon sugar. C. It is reduced to form carbon dioxide. D. It is activated with a phosphate from ATP. E. It is combined with a four-carbon sugar to form a six-carbon sugar.
Plants make ATP during the light reactions of photosynthesis. Why do plants also need to carry out the process of cellular respiration?
A) Plants need to make ATP from cellular respiration only when the conditions for photosynthesis are bad. B) The ATP made during photosynthesis is only enough to fuel the dark reactions. The plant has to carry out cellular respiration to make ATP for other metabolic activities. C) Plants do not need to perform cellular respiration. D) The ATP made during photosynthesis is different from the ATP made during cellular respiration.