Which type of mutation will have the most evolutionary consequence?
A. a mutation in a stomach cell
B. a mutation in a kidney cell
C. a mutation in a lung cell
D. a mutation in a germ-line cell
Answer: D
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Enantiomers are a pair of stereoisomers that are mirror images of each other. Which of the following would also be true of this pair of structures?
A. They will have different melting points. B. They will have different densities. C. They will have superimposable structures. D. They will have the same molecular weight. E. If basic molecules, they will have the same pKa.
A fruit-bearing dioecious flower would have
A. an androecium. B. a gynoecium. C. both an androecium and a gynoecium. D. neither an androecium nor a gynoecium. Clarify Question What is the key concept addressed by the question? Gather Content What do you already know about fruit? What other information is related to the question? Choose Answer Given what you now know, what information 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 normal sex chromosomal combination for a human female is
A. XYY. B. XY. C. YY. D. XX. E. XXX.
The initial skeleton of all vertebrate embryos is made
of a. cartilage. b. collagen. c. compact bone. d. spongy bone. e. fibrous proteins.