Mutations of ________ [two words] in fruit flies can cause appendages to appear in the wrong places, such as legs growing in place of antennae
Fill in the blank(s) with correct word
homeotic genes
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Structures that have similar structure and function but different evolutionary origins are called:
A. inherited. B. evolutionary modifications. C. analogous. D. homologous. E. uniform.
8. The copulatory organ of the earthworm is the
(a) penis. (b) clitellum. (c) gonopodium. (d) vestibule.
The fact that DNA replication occurs in virtually the same way in all organisms reflects:
A. its evolution early in the history of life. B. its multiple origins in different lineages of organisms. C. the laws of thermodynamics. D. the fact that mutations are generally harmful. E. the universal genetic code.
The drug taxol stabilizes microtubules so they cannot shorten. If taxol were added during anaphase of mitosis, what effect would you expect it to have on anaphase movements?
a. It would stop all movements. b. It would stop anaphase A but not anaphase B. c. It would stop anaphase B but not anaphase A. d. It would have no effect. e. None of the above