Which of the following is generally true of eukaryotic promoters?

A. Regulatory regions lie within 200 base pairs of the promoter.
B. The more complex the organism, the more complex its promoters.
C. Promoters are under the control of a single regulatory sequence.
D. RNA polymerase II exhibits high intrinsic affinity for promoter sequences.


B

Biology & Microbiology

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A woman who is heterozygous for an allele that results in X-linked pattern baldness marries a man who is nonbald. Which of the following would be true of their offspring?

A. All would be bald B. All of the females would be nonbald, all males would be bald C. All of the females would be nonbald, ½ of the males would be bald D. ½ of females would be bald, and ½ of the males would be bald E. All would be nonbald

Biology & Microbiology

Explain the difference between benign and malignant tumors

What will be an ideal response?

Biology & Microbiology

The principle of parsimony ____ for constructing the phylogenetic tree that represents the smallest number of

evolutionary changes.

a. minimizes the number of homologies

b. maximizes the number of homologies c. completely ignores homologies d. minimizes the number of homoplasies e. maximizes the number of homoplasies

Biology & Microbiology

The __________ circuit carries blood from the heart

to body tissues, and then returns it to the heart. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology