CELL DIVISION
THE CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Two identical copies of the same chromosome formed by DNA replication, attached to each other by a structure called the centromere.
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The cytoskeletal structure of eukaryotic cells that forms during cell division to separate sister chromatids between daughter cells.
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A thread-like structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
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A chromosome that has been newly copied, but they are both still joined together.
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Detailed explanation-1: -A chromatid is one of the two identical halves of a chromosome that has been replicated in preparation for cell division. The two “sister” chromatids are joined at a constricted region of the chromosome called the centromere.
Detailed explanation-2: -A chromatid is a replicated chromosome having two daughter strands joined by a single centromere (the two strands separate during cell division to become individual chromosomes). From: Human Biochemistry, 2018.
Detailed explanation-3: -Sister chromatids A sister chromatid is either one of the two chromatids of the same chromosome joined together by a common centromere. A pair of sister chromatids is called a dyad.
Detailed explanation-4: -Two chromatids are required to form a chromosome. A chromatid is one of two identical structures of chromosomes which already undergo replication. Two chromatids in a chromosome are known as sister chromatids.
Detailed explanation-5: -The two chromatids of the same chromosome are referred as sister chromatids, while the chromatids of homologous chromosomes are termed as non-sister chromatids (Fig.