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NEET UG BIOLOGY MCQ: CELL-CYCLE & CELL DIVISION
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Assertion (A): Smaller cells are usually metabolically active cells.
Reason (R): Smaller cells have higher nucleocytoplasmic ratio and higher surface volume ratio.
Reason (R): Smaller cells have higher nucleocytoplasmic ratio and higher surface volume ratio.
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Correct option: A
If both A and R are true and R is the correct explanation of A
Option A (If both A and R are true and R is the correct explanation of A) is correct because smaller cells are more metabolically active due to their higher surface area to volume ratio and nucleocytoplasmic ratio.
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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?