Explanation
B.Explanation for correct option -A
$$\textbf{Correct option: E}$$
$$\textbf{Solution:}$$
Option A:
$$\bullet$$ Centrioles are paired barrel-shaped organelles found near the nucleus in the cytoplasm of animal cells. They aid in the organization of microtubules, which serve as the cell's skeletal system.
$$\bullet$$ They are duplicated in the Gap1 or G1 phase of the interphase of cell cycle. It is the initial phase of cell cycle.
Option B:
$$\bullet$$ Disintegration of nuclear membrane and chromosomes start appearing in the prophase.
Option C:
$$\bullet$$ Replication or duplication of DNA occurs in the S-phase.
Option D:
$$\bullet$$ Condensation of DNA, to form chromosomes, occurs in prophase of cell cycle.
Option E:
$$\bullet$$ The chromosomes move toward opposite poles during cell division immediately after their centromere splits.
$$\bullet$$ Spindle fibers get attached with the kinetochores of the chromosome and pull the centromere toward opposite direction. Thus, the chromosomes get separated.
$$\bullet$$ This happens in anaphase of the cell cycle.
Hence the correct option is option E.
A cell that has 36 chromosomes at the start of interphase, will have ............ following the conclusion of mitosis in a eukaryote.
The original cell (II) enters prophase (IV) wherein shortening and thickening of chromosomes and disintegration of nuclear envelope occurs. This is followed by movement and alignment of chromosomes on the equator in metaphase (V). Separation of sister chromatids (I) followed by their movement towards the opposite pole of spindle marks anaphase. Completion of separation of sister chromatids which are now present at the opposite poles of cell marks telophase (V). Cytoplasmic division forms two daughter cells (III). Thus, the correct answer is option B.
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