Question

which of the following structures is found in a pair of duplicated homologous chromosomes? four chromatids two sister chromatids that have synapsed with each other two single - stranded chromosomes that have synapsed four unique chromosomes

Explanation:

• Homologous chromosomes are pairs of chromosomes (one from each parent) that have the same genes at the same loci.
• When chromosomes duplicate, each chromosome consists of two sister chromatids.
• A pair of duplicated homologous chromosomes will have a total of four chromatids (two chromatids per chromosome).
• Sister chromatids are part of the same chromosome and do not synapse with each other. Synapsis occurs between homologous chromosomes.
• Single - stranded chromosomes are not duplicated.
• A pair of duplicated homologous chromosomes are not four unique chromosomes.

Answer:

four chromatids