The CRP-cAMP complex binds the lactose operon when:
A. glucose levels and cAMP levels are high.
B. glucose levels are high and cAMP levels
are low.
C. glucose levels are low and cAMP levels
are high.
D. glucose levels and cAMP levels are low.
E. None of these choices are correct.
C
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The figure above depicts the result of an experiment to determine how DNA replication occurs. Based on these results, it
appears that after replication, each new DNA molecule contains ____.
a. either entirely old DNA strands or entirely new DNA strands b. one old DNA strand and one new DNA strand c. entirely new DNA d. some DNA helix regions from old DNA alternating with some DNA regions from new DNA e. two strands that are each a mix of old and new DNA
Explain how microevolution and artificial selection are demonstrated by the wide variety of dog breeds currently in existence
What will be an ideal response?
The removal of all life forms from inanimate objects is termed ________.
A. sterilization B. disinfection C. degerming D. decontamination E. antisepsis
Some populations, especially those with high genetic variability and short life spans, may avoid extinction as the climate changes through
A) biological magnification. B) bioprospecting. C) distribution of populations. D) evolutionary adaptation.