PATHOLOGY

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: -Duplicated chromosomes are referred to as sister chromatids. Sister chromatids represent identical DNA chromosomes that will be separated during cell division to ensure each new cell receives the full amount of DNA in order to survive and carry out their normal metabolic functions.

Detailed explanation-3: -A pair of sister chromatids is called a dyad. Once sister chromatids have separated (during the anaphase of mitosis or the anaphase II of meiosis during sexual reproduction), they are again called chromosomes, each having the same genetic mass as one of the individual chromatids that made up its parent.

Detailed explanation-4: -A sister chromatid refers to the identical copies (chromatids) formed by the DNA replication of a chromosome, with both copies joined together by a common centromere. In other words, a sister chromatid may also be said to be ‘one-half’ of the duplicated chromosome. A pair of sister chromatids is called a dyad.

Detailed explanation-5: -Chromatids are formed during chromosome duplication, which occurs prior to cell division via the processes of mitosis and meiosis. The two “sister” chromatids in a pair are identical and are joined by a centromere.