What are telomeres? (A) the structures that hold two sister chromatids together (B) enzymes that elongate the DNA strand during replication (C) the sites of origin of DNA replication (D) the ends of linear chromosomes

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23-08-2022
Biology

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What are telomeres? (A) the structures that hold two sister chromatids together (B) enzymes that elongate the DNA strand during replication (C) the sites of origin of DNA replication (D) the ends of linear chromosomes

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AnnuG AnnuG · Answer 1 · 2022-09-04T13:36:56-04:00

Telomeres are (D) the ends of linear chromosomes.

Telomeres are the long repetitive sequences ( TTAGGG) present at the end of DNA. Their function is to protect the ends of DNA. It can extend up to 15,000 base pairs in length. Telomeres allow the replication of DNA without losing the genes. They get shortened with age.

Chromosomes are the compact form of DNA. It is composed of histone proteins and DNA wrapped around it. The transfer of DNA from one generation to another takes place in the forms of chromosomes. Each chromosome is composed of two chromatids that are joined together at the center by a kinetochore.

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