NEET UG BIOLOGY MCQ: CELL-CYCLE & CELL DIVISION

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An egg cell has 5pico gram of DNA in its nucleus. How much amount of DNA will be, in this animal, at the end of

{G_2}

-phase of mitosis?

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Correct option: D

20pico gram

Option D (20pico gram) is correct because the DNA content doubles during the S phase and remains doubled until the end of G2 phase. Since the egg cell has 5 pg, the G2 phase will have 4 times that amount.

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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?