In natural selection, __________ determines which phenotypes are successful

A) chance
B) the environment
C) sample size
D) genetic drift
E) human intervention


Ans: B) the environment

Biology & Microbiology

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Formation of glucose 6-phosphate

What will be an ideal response?

Biology & Microbiology

Intermediate filaments are most closely associated with which of the following?

a. actin. b. microvilli. c. pseudopodia. d. keratins. e. myosin

Biology & Microbiology

In attenuation of the trp operon,

a. termination of transcription occurs with higher levels of Trp-tRNA. b. termination of translation occurs with higher levels of Trp-tRNA. c. termination of transcription occurs with lower levels of Trp-tRNA. d. termination of translation occurs with lower levels of Trp-tRNA. e. the control region lies upstream of the promoter.

Biology & Microbiology

A serological test that involves the clumping of antigen and antibody is the (agglutination/antigen/ELISA) test.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology