Question

this chromosome has two chromatids, joined at the centromere. what process led to the formation of the two chromatids?

Answer 1

DNA replication is the process that leads to the formation of the two chromatids.

DNA REPLICATION:

• DNA replication is the process by which the information in a DNA molecule is used to synthesize another to make two identical copies.

• DNA replication occurs prior to every cellular division in order to enable daughter cells have the correct amount of genetic material.

• DNA molecules are borne on structures called chromosomes. Hence, when the information of a DNA molecule is duplicated, there is need for another chromosome to harbor the replicate.

• Chromosomes containing identical DNA molecules are termed sister chromatids. Sister chromatids are joined together by a centromere.

• Therefore, DNA replication is the process that leads to the formation of the two chromatids.

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