?In rapidly dividing cells, expression of BRCA1 and BRCA2 genes is the highest during the ____.
a. mitosis to cytokinesis transition
b. G1/S transition and into S phase
c. G2/mitosis transition
d. S/G2 transition
e. metaphase to anaphase transition
Answer: b. G1/S transition and into S phase
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Gray whales spend the winter months in the Bering Sea where they mate and give birth
Indicate whether the statement is true or false
When molt-inhibiting hormone is prevented from being secreted
a. ecdysone levels increase. b. ecdysone levels decrease. c. molting is inhibited. d. growth is inhibited. e. growth is stimulated.
Calico cats are female. The patches of fur color result from X inactivation, silencing fur color genes on one X chromosome or the other. However, extremely rarely, there can be a male calico. Describe the genetics necessary for a male calico cat.
A. XX with a translocation of the SRY gene onto one of the X chromosomes. B. XY with a mutation in the SRY gene. C. XX with a translocation of the testosterone gene onto one of the X chromosomes. D. XY with a mutation in the estrogen gene. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about calico cats? 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 lowest concentration of drug that yields no growth during a dilution method is called
A) minimum bactericidal concentration B) minimum inhibitory concentration C) mutant prevention concentration D) serum killing power