In a given situation, reduced or missing function in gene A results in a viable but noticeable phenotype. The same is true for gene B. However, when both gene A and gene B products are reduced or missing in the same organism, the result is lethality
What is this called?
synthetic lethality or synthetic enhancement
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The physical distribution of cytoplasmic material into the two daughter cells in plant cells is referred to as:
A. The gap phase B. Cytokinesis C. Binary fission D. Interphase
When a diabetic injects insulin, what does this accomplish?
A. promotes glucose release from cells, raising blood glucose B. promotes uptake of glucose into cells, lowering blood glucose C. promotes hydrolysis of glycogen, raising blood glucose D. improves the ability of the body to sense blood glucose levels
An idea that could be traced back to Plato is that
A. worldwide catastrophes caused extinction, followed by creation of new species. B. acquired characteristics could be passed from parents to offspring. C. artificial selection of animals by humans proves that evolution can occur. D. variation is due to imperfections in copies of some perfect ideal form. E. species could change with time.
Which extraembryonic membrane accumulates fetal urine?
A) chorion B) yolk sac C) allantois D) amnion