NEET UG BIOLOGY MCQ: CELL-CYCLE & CELL DIVISION

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Compaction of chromosomes is seen during

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Correct option: A

Leptotene

Option A (Leptotene) is correct because the compaction of chromosomes, which is the process of chromosomes becoming shorter and thicker, is first observed during the leptotene stage of prophase I in meiosis.

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At metaphase of mitosis, each chromosome consists of ________ chromatid(s) _________ centromere(s) _________ kinetochore(s) and _________ molecule(s) of DNA. Mitosis occurs in: In which phase, DNA content will be doubled? Assertion : Cell growth is a continuous process
in terms of cytoplasmic increase.

Reason : DNA synthesis occurs only during
two specific stages in the cell cycle. Interkinesis means What is the approximate duration of cell cycle for a mammalian cell?