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NEET UG BIOLOGY MCQ: CELL-CYCLE & CELL DIVISION
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Understanding
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Select the matched ones.
I . S-phase - DNA replication
II. Zygotene - Synapsis
III. Diplotene - Crossing over
IV. Meiosis - Both haploid and diploid cells
V G_2-phase - Quiescent stage
I . S-phase - DNA replication
II. Zygotene - Synapsis
III. Diplotene - Crossing over
IV. Meiosis - Both haploid and diploid cells
V G_2-phase - Quiescent stage
View answer and explanation
Correct option: A
I and II only
Option A (I and II only) is correct because S-phase is indeed for DNA replication, and Zygotene is when synapsis occurs. Diplotene is marked by the dissolution of the synaptonemal complex and the appearance of chiasmata, not crossing over itself (crossing over happens in Pachytene). Meiosis results in haploid cells, not both haploid and diploid. G2 phase prepares the cell for mitosis; Quiescent stage is G0.
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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?