The answer to ur question is (.b)
You should wear a hat and gloves to prepare for a cold front; the average cold front is about 45-50 degrees, which is cold but not freezing enough for a heavy jacket.
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The answer is true. Ghrelin is produced by ghrelinergic cells of the stomach. When the stomach is empty, the neuropeptide is absorbed into the blood and induces a response from the hypothalamus. The hypothalamus increases the feeling of hunger, appetite, and gastric secretion.
Answer:
b. Allolactose binds to the repressor protein.
Explanation:
Allolactose is an inducer of the lac operon. It binds to the repressor protein and brings about some changes in its confirmation to render it unable to bind to the operator sequence. RNA polymerase enzyme is allowed to transcribe the lac operon. The operator sequence is a binding site for repressor protein and is present near the promoter. When lactose is not present in the medium, repressor protein binds to the operator sequence and does not allow the RNA polymerase to transcribe lac operon.
Answer:
Membrane proteins perform a variety of functions vital to the survival of organisms: Membrane receptor proteins relay signals between the cell's internal and external environments. Transport proteins move molecules and ions across the membrane. ... Cell adhesion molecules allow cells to identify each other and interact.
Explanation: