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NEET UG BIOLOGY MCQ: CELL-CYCLE & CELL DIVISION
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How many chromosomes shall be present in a Diploid cell at mitotic anaphase if its antipodal cell has 10 chromosomes?
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Correct option: B
40
Option B (40) is correct because antipodal cells are haploid (n), so n=10. A diploid cell has 2n chromosomes, so 2n=20. At mitotic anaphase, the number of chromosomes doubles temporarily due to the separation of sister chromatids, resulting in 40 chromosomes.
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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?
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?