Gene expression in bacteria is regulated primarily by:
a. controlling the rate of DNA replication.
b. protein modifications.
c. protein degradation.
d. transcriptional control.
e. translational control
d
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The complete genetic material of an organism is its
A) genome. B) chromosome. C) phenotype. D) genotype. Answer A
The hierarchy of endocrine glands that control the release of sex steroid hormones is ____
a. hypothalamus, posterior pituitary, gonads b. hypothalamus, anterior pituitary, gonads c. anterior pituitary, hypothalamus, gonads d. posterior pituitary, hypothalamus, gonads e. anterior pituitary, posterior pituitary, gonads
Which of the following is NOT one of the assumptions of Lack's hypothesis?
A) There is no trade-off between a parent's reproductive effort in one year and its survival or reproductive performance in future years. B) The only effect on clutch size of offspring is in determining whether the offspring survive. C) The discrepancy between Lack's hypothesis and the behavior of individual birds may sometimes be more apparent than real. D) All of these are assumptions of Lack's hypothesis.
All fungi are multicellular, but some also have a unicellular form that is called:
a. yeast. b. fruiting body. c. hyphae. d. seeds. e. spores.