Question 33 H12: Which of the following accurately describes the G2 checkpoint? It ensures accurate DNA replication during S phase. It monitors spindle fiber attachment to kinetochores. It checks for proper alignment of condensed chromatids during metaphase. It reduces cell size before mitosis.
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Step 1: The G2 checkpoint ensures that the cell is ready to enter mitosis. Show more…
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4. Match the checkpoint with their respective role in the cell cycle: A. All the options bellow are all checkpoints in the cell cycle. B. The G1 checkpoint checks that the integrity of the DNA before synthesizing a copy of it. C. The metaphase checkpoint determines if all chromosomes are attached to the spindle apparatus. D. Cytokinesis checks the formation of cleavage furrow to separate the cells. E. The G2 checkpoint checks for DNA damage and determines if all of the DNA is fully replicated.
Md.Daniyal A.
1. Check all the correct statements about the cell cycle. During the G2 checkpoint in eukaryotic cells, the cell is assessed with regard to DNA replication. During the M checkpoint in eukaryotic cells, the cell is assessed with regard to chromosomal attachment at the spindle.. Among, G1, S, G2 and M phases, G1 is the most variable phase. In normal cells, apoptosis happens during G1 phase. 2. Phosphorylation of target proteins by CDKs and dephosphorylation by protein phosphatases is a common mechanism for controlling the cell cycle. Which of the following are accurate examples of CDK dependent activation? Phosphorylated lamin proteins causes lamina breakdown and destabilization of the nuclear envelope during prophase Activation of the anaphase-promoting complex (APC), a ubiquitin ligase Phosphorylation of Receptor Tyrosine Kinase leading to cell proliferation Phosphorylated condensins cause chromosome condensation Phosphorylation of Rb protein and activation of gene transcription
Dominador T.
Question 13 Match the following: Ensures that all chromosomes have been replicated and the DNA is not damaged. Ensures that all sister chromatids are connected to the spindle. Ensures all conditions are favorable for cell division.
Anand J.
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