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NEET UG BIOLOGY MCQ: CELL-CYCLE & CELL DIVISION
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If the egg of sexually reproducing organisms contains 16 chromosomes, what will be the number of dyads in anaphase I?
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Correct option: C
32
Option A (16) is incorrect. If the egg has 16 chromosomes, the diploid number is 32 (2n=32). After meiosis I, each cell has 16 chromosomes, each consisting of two chromatids (dyad). Therefore, the number of dyads in anaphase I is 16.
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At metaphase of mitosis, each chromosome consists of ________ chromatid(s) _________ centromere(s) _________ kinetochore(s) and _________ molecule(s) of DNA.
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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?
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?