In humans the number of tetrads formed during mitosis is___________?
Correct answer: C. 0
- A. 23
- B. 46
- C. 0
- D. 4
Explanation
A tetrad is formed during prophase I of meiosis when homologous chromosomes pair, with each homolog consisting of two chromatids. Mitosis does not involve pairing of homologous chromosomes, so no tetrads are formed in human mitosis. Students may choose 23 or 46 by confusing chromosome number with the number of homologous pairs involved in tetrad formation.
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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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