What term describes regulation of the trp operon that can occur even in trpR? mutants, thus suggesting that the mechanism is repressor-independent?

A) modulation
B) derepression
C) attenuation
D) amplification


C) attenuation

Biology & Microbiology

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What method of reproduction do bacteria use?

a. Mitosis b. Binary fission c. Sexual reproduction d. Cytokinesis

Biology & Microbiology

Which of the following statements concerning

fertilization in ferns is true? a. It occurs outside the egg-producing structure. b. It requires water. c. The fertilization product is haploid. d. A spore is the product of fertilization. e. None of these are true.

Biology & Microbiology

Tendons connect

a. bones to bones. b. bones to ligaments. c. muscles to bones. d. bones to cartilage. e. ligament to cartilage.

Biology & Microbiology

Complement component C3, in the classical pathway, is split by __________.

A) C2bC4b B) C2aC4b C) C5 D) C2bC4a E) C4bC4a

Biology & Microbiology