CELL STRUCTURES AND FUNCTION
CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cytokinesis
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Mitosis phase
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S phase
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G2 phase
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Detailed explanation-1: -M phase. During the mitotic (M) phase, the cell divides its copied DNA and cytoplasm to make two new cells.
Detailed explanation-2: -The mitotic phase is a multistep process during which the duplicated chromosomes are aligned, separated, and moved to opposite poles of the cell, and then the cell is divided into two new identical daughter cells.
Detailed explanation-3: -Interphase: The DNA in the cell is copied resulting in two identical full sets of chromosomes. Outside of the nucleus? are two centrosomes, each containing a pair of centrioles, these structures are critical for the process of cell division?. During interphase, microtubules extend from these centrosomes.
Detailed explanation-4: -When prophase is complete, the cell enters prometaphase-the second stage of mitosis. During prometaphase, phosphorylation of nuclear lamins by M-CDK causes the nuclear membrane to break down into numerous small vesicles. As a result, the spindle microtubules now have direct access to the genetic material of the cell.
Detailed explanation-5: -In G1, cells accomplish most of their growth; they get bigger in size and make proteins and organelles needed for normal functions of DNA synthesis. Here, proteins and RNAs are synthesized, and, more especially the centromere and the other components of the centrosomes are made.