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NEET UG BIOLOGY MCQ: CELL-CYCLE & CELL DIVISION
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Number of bivalents are 8 in prophase I. What is the number of chromosomes during anaphase II?
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Correct option: A
16
Option A (16) is correct because if there are 8 bivalents in prophase I, the diploid number is 16. During anaphase II, sister chromatids separate, but the chromosome number remains the same as in the cell after meiosis I, which is half of the original diploid number. Therefore, the number of chromosomes during anaphase II 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.
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?