5. X and Y chromosomes as homologous pairs: In humans, the XX pairing of the 23rd pair of chromosomes generally gives rise to phenotypic females, while the XY pairing generally gives rise to phenotypic males. Despite having very different shapes and genetic content, the X and Y chromosomes of humans always pair together during meiosis and mitosis. in humans, the gene largely responsible for the male phenotype is the SRY а. gene and it is found on the Y chromosome. However, genetic females (XX) can on occasion have phenotypic traits attributable to the SRY gene. Please explain how this might happen during meiosis. b. Explain why genetic females with genetically encoded male phenotypic traits must (due to the presence of the SRY gene) have received the mutant X chromosome from their father.

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Reproductive system infection

The biological process through which parents produce new children is called reproduction. A reproductive system is a group of internal and external organs that collaborate to allow males and females to reproduce. Many experts believe that the reproductive system is one of the most important systems in the body due to its crucial function in the survival of the species. Among the body's basic systems, the reproductive tract is the one that differs the most between sexes, and it is also the only one that does not operate until puberty.