Which of the following statements correctly describes homologous chromosomes?
Correct answer: D. They carry both morphologically similar members with same set of genes.
- A. They are formed during meiosis.
- B. They are held together by centromeres.
- C. They are chromatids of the same chromosome.
- D. They carry both morphologically similar members with same set of genes.
Explanation
The homologous chromosomes are made before meiosis, so option A is incorrect. Early in prophase I, homologous chromosomes come together to form a synapse. The chromosomes are bound tightly together and in perfect alignment by a protein lattice, so option B is incorrect. The question talks about chromosomes, not chromatids, so option C is incorrect. Homologous chromosomes carry the same genes and hence are morphologically similar. So option D is correct.
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About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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