BIL 150 Mallery Final Exam And Correct Answers.

a new drug, Serostat, blocks the formation of MPF (mitotic promoting factor) in cultured HeLa cells. which of the following aspects of the reproduction of cells would most likely be disrupted by Serostat? - Answer phosphorylation of proteins initiating mitosis a particular cell has twice the amount of DNA as that in the diploid amount for this species. This particular cell is most likely? - Answer in G2 interphase the decrease in the amount of MPF activity at the end of mitosis is due to? - Answer the degradation of cyclin which of the following statements is most accurate concerning the protein cyclin? - Answer it binds with a CDK (cyclin dependent kinase) forming active MPF (mitotic promoting factor) what stage of mitosis is depicted by the figure "C"? - Answer metaphase meiosis II is similar to mitosis in that? - Answer sister chromatids separate when homologous chromosome pairs during meiosis and allow crossover, which of the following is likely to occur? - Answer two non-sister chromatids exchange chromatid pieces independent assortment of chromosomes results in the progeny all having an identical combination of genetic traits in each of the progeny cells. - Answer false sexual cell reproduction may be advantageous evolutionarily because? - Answer it can provide genetic variability in heterogenous environments Phenylketonuria (PKU) is a recessive human disorder in which an individual cannot appropriately metabolize the essential amino acid PHE (phenylalanine). Thus an efficient and effective treatment for PKU turns out to be which of the following? - Answer regulating the diet of the affected persons to severely limit the uptake of PHE an obstetrician knows that one of her patients is a pregnant woman, whose fetus is at risk for a serious genetic disorder that is detectable biochemically in fetal cells. The obstetrician would most reasonably offer which of the following procedures to her patient? - Answer amniocentesis