The interaction between allolactose and the repressor protein results in a shape change known as a(n)

A) isomer.
B) mutation.
C) enantiomer.
D) allosteric shift.
E) transformant.


D

Biology & Microbiology

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Plants with flowers belong to the _______.

a) gymnosperms b) angiosperms c) seedless vascular plants d) nonvascular plants

Biology & Microbiology

Discuss how mutations in proteins can be used to examine the link between a person’s genotype and that person’s

phenotype. What will be an ideal response?

Biology & Microbiology

Which of the following best describes aerobic respiration?

A. The production of ATP from glucose in the presence of oxygen B. The production of pyruvate in the absence of oxygen C. The production of pyruvate using energy from the sun D. The production of ATP from glucose in the absence of oxygen

Biology & Microbiology

Refer to the paragraph on the effects of estrogens in the environment

You are assigned to write the report to the Environmental Protection Agency, which needs to decide what level of 17?-estradiol to permit in sewage output. You do not want to make the level any lower than necessary, because it requires substantial additional money for the extra treatment of sewage. Given the data presented above, what level of 17?-estradiol would you suggest is safe to prevent feminization of fish? A) 2.5 ng/l B) 5 ng/l C) 12.5 ng/l D) 25 ng/l E) 100 ng/l

Biology & Microbiology