THE CELL
CELL COMMUNICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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from interphase through anaphase
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from G1 of interphase through metaphase
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from anaphase through telophase
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from G2 of interphase through metaphase
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Detailed explanation-1: -Hence, during prophase and metaphase of mitosis, the chromosomes are dyad i.e., composed of two chromatids.
Detailed explanation-2: -In the S phase (synthesis phase), DNA replication results in the formation of two identical copies of each chromosome-sister chromatids-that are firmly attached at the centromere region. At this stage, each chromosome is made of two sister chromatids and is a duplicated chromosome.
Detailed explanation-3: -Answer and Explanation: There are 92 sister chromatids in G2 in human cells. Sister chromatids are duplicated chromosomes. Cells duplicate their genetic material during S phase.
Detailed explanation-4: -In G1, each chromosome is a single chromatid. In G2, after DNA replication in S phase, as cell enter mitotic prophase, each chromosome consists of a pair of identical sister chromatids, where each chromatid contains a linear DNA molecule that is identical to the joined sister.
Detailed explanation-5: -Each chromosome in G2 consists of two double-stranded DNA molecules (chromatids) joined by a single centromere.