Question

which of these is not found in the karyotype of a normal human male? multiple choice 46 chromosomes 92 dna molecules 46 chromatids 23 pairs of homologous chromosomes x and y chromosomes

Explanation:

A normal human male karyotype has 46 total chromosomes (22 autosomal pairs + X and Y sex chromosomes), which is 23 pairs total. When chromosomes are in their replicated state (used for karyotyping), each chromosome has 2 sister chromatids, so there are 92 chromatids total, each containing one DNA molecule, meaning 92 DNA molecules. 46 chromatids would only be present if chromosomes were unreplicated, which is not the case for a standard karyotype preparation.

Answer:

46 chromatids