The older a clade:
a. the more likely that its members will share very similar sequences.
b. the more likely that its members would show sequence divergence.
c. the less likely it has a common ancestor.
d. None of the above.
B
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________ is the process of determining the order in which nucleotides are arranged in a genome
a. Ordering b. Sequencing c. Cultivating d. Annotating
Which of the following statements about spermatogenesis is false?
A. Sperm are motile as soon as they are produced. B. Secondary spermatocytes and spermatids are linked together by cytoplasmic bridges. C. Spermatogenesis takes 2–3 months. D. Sperm are produced continuously within the seminiferous tubules. E. None of the answer options is false.
Rising intracellular levels of which ion are necessary for neurotransmitter release from a neuron?
A. K+ B. Cl- C. Mg2+ D. HCO3- E. Ca2+
Which population is most likely to be subject to the bottleneck effect?
A) Population A. B) Population B. C) Population C. D) They are all the same. E) It is impossible to tell from the information given.