The distinctive mating signals that have evolved as part of an animal's courtship illustrate what type of
reproductive isolating mechanism?
a. behavioral isolation
b. mechanical isolation
c. gametic isolation
d. temporal isolation
e. hybrid breakdown
A
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Recent research has suggested that some pseudogenes and non-protein-coding DNA code for RNAs that affect transcription of coding regions. This suggests that
A. pseudogenes code for proteins. B. non-protein-coding DNA has no function. C. non-protein-coding DNA may regulate gene expression. D. pseudogenes have no function. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about non-protein-coding DNA? Consider Possibilities · Consider the different answer options. Which can you rule out? 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?
Explain why vigorous exercise in warm weather could be hazardous to your enzymes? What will be an ideal response?
Bone mass increases in humans until about age
__________ because __________ after that time. a. 18; osteoclast activity commences b. 13; osteoblast activity slows c. 24; osteoblast activity slows d. 24; osteocytes no longer function e. 18; osteocytes are no longer formed
Germ-line mutations
A. can be passed to subsequent generations. B. occur in sex cells. C. may range from having no effect to completely inactivating protein activity. D. All of the answer choices are true about germ-line mutations. E. Only two of the answer choices are true.