Scientific concept of gender

A sexually reproducing animal or plant either generates male gametes or female gametes, depending on its sex. Hermaphrodites are organisms that can create both types of gametes. Male and female gametes combine during sexual reproduction to generate zygotes, which then grow into offspring that have characteristics from both parents.
Physical similarities and differences between men and females of the same species might be caused by different reproductive demands on the two sexes. Physical differences between the sexes can evolve more quickly, depending on mate preference and sexual selection.

In sexually undivided organisms, such as the green alga Ulva lactuca, when the individuals are isomorphic and the gametes are isogamous, the words male and female often do not apply. Mating types are some forms of functional variations between gametes, such as those seen in fungus.

The genes in a living thing define its sex. Male mammals possess an X and a Y chromosome, whereas female mammals carry two X chromosomes, and this sex determination method is known as the XY system. The ZW system in birds and the X0 system in insects are two more chromosomal sex-determination systems found in animals. Temperature-dependent sex determination in reptiles and crustaceans is one of many environmental processes.a sexual relationship
Only eukaryotes can reproduce sexually, and during this process, kids are born with a mix of each parent's genetic features.
The deoxyribonucleic acid of chromosomes holds genetic characteristics. Eukaryotic cells contain a pair of homologous chromosomes, one from each parent, and this double-chromosome stage is referred to as "diploid" in biology. Through the process of meiosis, diploid organisms create gametes, which are specialized haploid sex cells with only one pair of chromosomes, during sexual reproduction. In the process of meiosis, sections of DNA are swapped between matched pairs of chromosomes via chromosomal crossover to create new chromosomes, each of which has a distinct and new combination of the genes from the parents. The gametes then divide the chromosomes into single sets. Thus, each gamete in the progeny has half the genetic material of the mother and half the genetic material of the father.