A protein channel linking the cytoplasms of adjacent animals cells is called a(n)_ junction.
A. anchoring
B. gap
C. tight
D. adhering
E. microtubular
B. gap
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A karyotype of chromosomes from a cancer cell would be most likely to exhibit
A) polyploidy. B) a single missing chromosome. C) a single extra chromosome. D) a normal set of chromosomes because only point mutations have occurred.
Bromthymol blue (BTB) is colored below pH 6.0 and colored above pH 7.6
a. blue, yellow. b. yellow, green. c. red, blue. d. yellow, blue.
Lenticels function to:
a. protect undeveloped embryonic shoots. b. permit gas exchange through the periderm. c. support leaves and flowers. d. absorb water and dissolved nutrient minerals. e. anchor a plant in the ground.
In the mechanism of action for auxin, after auxin binds with its receptor, which of the following happens next?
a. Proteins are targeted for destruction. b. Genes are activated. c. Ubiquitin attaches to repressor proteins. d. Transcription occurs. e. The cell wall loosens