Often in complete dominance, the recessive allele codes for a nonfunctional ________
Fill in the blank(s) with correct word
protein
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Pollen grains germinate
a. in the style. b. in the ovule. c. on the stigma. d. at the micropyle. e. in the ovary.
__________ proteins stick into the cell membrane that can go part way or all the way through to the other side.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements most accurately describes the expression of the repressor protein of the tryptophan operon?
a. The gene for the tryptophan repressor is turned on in response to high levels of tryptophan in the cell. b. The gene for the tryptophan repressor is turned off in response to high levels of tryptophan in the cell. c. The gene for the tryptophan repressor is turned on in response to low levels of tryptophan in the cell. d. The gene for the tryptophan repressor is turned off in response to low levels of tryptophan in the cell. e. The gene for the tryptophan repressor is expressed constitutively.
Synthetic auxin can be used as a(n) ____.
A. pesticide B. herbicide C. fungicide D. insecticide E. bactericide