The process involves the separation of sister chromatids.
A) in a coil, connected through hydrogen bonds.
In this case, the number of
chromosome pairs in the ant is 4. During gametogenesis, each chromosome pair will segregate into one gamete. Thus, the count of unpaired chromosomes = 4 unpaired chromosomes. The resulting gametes are now haploid, meaning they have no paired chromosomes. Now, each gamete will only carry one chromosome from each pair. Assuming the gene present in the cell chromosomes is heterozygote, there will be 2 outcomes. Consequently, their probability will yield
outcomes. Therefore, for 4 chromosomes it would amount to
chromosomes.
The hearts of birds and mammals, which have four chambers, are accurately classified as homoplasies. In evolutionary terms, homoplasies refer to traits that are shared across different species, even though their common ancestors lacked these traits entirely. To illustrate, both bird and bat wings perform a similar function of enabling flight, yet these structures evolved separately without being present in their ancestors. Consequently, while birds and mammals each have a four-chambered heart, their predecessors only possessed three chambers. This independent evolution exemplifies homoplasy.