34-Chromosomes that are not properly attached to the mitotic spindle will halt t

Question

34-Chromosomes that are not properly attached to the mitotic spindle will halt the cell cycle in the a. M phase. b. Gi phase. c. G: phase. d. S phase. e. c and d. 35- Which of the following are the major molecular components of the cell cycle control machinery? a. DNA polymerases. b. Cyclins c. Cyclin-dependent kinases (Cdks) d. Replication initiation factors e, "b" and "c" 36- In the event of a replication error that requires the cell cycle to be temporarily halted in the S phase, which of the following must happen? a. The S phase cyclin must be degraded. b. The S phase Cdk must be degraded. c. The S phase cyclin-Cdk complex must be bound by a Cdk inhibitor. d. The S phase cyclin-Cdk complex must be degraded e. All the above. 37- At the end of the M phase, which of the following should happened in order to ensure that the cell exits mitosis? a. The mitotie cyclin must be degraded b. The mitotic Cdk must be degraded. The mitotic cyclin-Cdk complex must be bound by a Cdk inhibitor. d. The mitotic cyclin-Cdk complex must be degraded. e. All of the above. c. 38-Which of the following events of the M-phase happens first? a. Alignment of the chromosomes at the spindle equator. b. Pinching of the cell into two daughter cells. c. Re-formation of the nuclear envelope d. Condensation of the chromosomes. e. Separation of sister chromatids. 39- Which of the following events of the M-phase is part of cytokinesis? Alignment of the chromosomes at the spindle equator b. a. Pinching of the cell into two daughter cells. c. Re-formation of the nuclear envelope. d. Condensation of the chromosomes. e. Separation of sister chromatids. 40- Which of the following events of the M-phase directly involves the activity of the anaphase- promoting complex? a. Alignment of the chromosomes at the spindle equator. b. Pinching of the cell into two daughter cells c. Re-formation of the nuclear envelope. d. Condensation of the chromosomes. e. Separation of sister chromatids.

Explanation / Answer

Hence, the right answer is option (a) M-phase

Hence, the right answer is option (e) “b” and “c”

Hence, the right answer is option (a) the S-phase cyclin must be degraded and (c) the S-phase cyclin-CDK complex must be bound by a CDKs inhibitor

Hence, the right answer is option (a) the M-phase cyclin must be degraded and (c) the M-phase cyclin-CDK complex must be bound by a CDKs inhibitor

Hence, the right answer is option (d) condensation of the chromosomes.

Hence, the right answer is option (c) reformation of the new nuclear envelope and (e) separation of the sister chromatids

Hence, the right answer is option (e) separation of sister chromatids

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