A mating between a purebred purple-flowered pea plant and a purebred white-flowered pea plant would produce a(n)
A. purebred variety
B. F2 generation
C. hybrid
D. P generation
C. hybrid
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Ossicles are found in
(a) the outer ear. (b) the middle ear. (c) the inner ear. (d) both a and c.
If the partial pressure of oxygen (pO2) in a man's blood plasma decreased below that in his red blood cells, what would be the result?
A. More oxygen would diffuse into his red blood cells and be transported throughout his body. B. Oxygen would diffuse out of his red blood cells, and less oxygen would be transported throughout his body. C. The concentration of oxygen would be the same in red blood cells and blood plasma.
Which of these processes is least likely to expand the coding capacity of the genome?
A. RNA editing B. alternative splicing C. poly(A) site choice D. RNA capping
Which of the following statements about the Hershey-Chase experiment is false?
A) The virus-infected bacteria showed radioactive phosphorus. B) Protein was labeled with radioactive sulfur. C) The virus-infected bacteria contained radioactive sulfur. D) DNA was labeled with radioactive phosphorus.