Chromosomes which are the same size and shape and contain the same genes are called

Chromosomes which are the same size and shape and contain the same genes are called

• A. Sister chromatids
• B. Autosomes
• C. Homologous chromosomes
• D. Chromatid pairs

Answer: (C)

Matching chromosome pairs in a diploid organism are called homologous chromosomes. They are the same size and shape and carry the same genes in the same order, with one chromosome inherited from each parent. The genes can have different variants (alleles) on the two homologues, which is what creates genetic variation when these pairs align and may exchange genetic material during meiosis. Sister chromatids, on the other hand, are identical copies of a single chromosome produced during DNA replication and remain attached until cell division, so they’re not a separate pair from two parents. Autosomes refer to all non-sex chromosomes, which isn’t the defining idea here. Thus, the chromosomes described are homologous chromosomes.

Matching chromosome pairs in a diploid organism are called homologous chromosomes. They are the same size and shape and carry the same genes in the same order, with one chromosome inherited from each parent. The genes can have different variants (alleles) on the two homologues, which is what creates genetic variation when these pairs align and may exchange genetic material during meiosis. Sister chromatids, on the other hand, are identical copies of a single chromosome produced during DNA replication and remain attached until cell division, so they’re not a separate pair from two parents. Autosomes refer to all non-sex chromosomes, which isn’t the defining idea here. Thus, the chromosomes described are homologous chromosomes.