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Posted by / 07-Oct-2017 20:47

In complex organisms, the sex organs are the parts that are involved in the production and exchange of gametes in sexual reproduction.

Many species, both plants and animals, have sexual specialization, and their populations are divided into male and female individuals.

spermatozoa, or sperm, in animals; pollen in seed plants) while females produce large gametes (ova, or egg cells).

Individual organisms which produce both male and female gametes are termed hermaphroditic.

XY sex determination is used by most mammals, and from a comparison between chicken and human, the Z chromosome appeared similar to the autosomal chromosome 9 in human, rather than X or Y, suggesting that the ZW and XY sex-determination systems do not share an origin, but that the sex chromosomes are derived from autosomal chromosomes of the common ancestor of birds and mammals.

the malaria parasite) also engage in sexual reproduction.

Some bacteria use conjugation to transfer genetic material between cells; while not the same as sexual reproduction, this also results in the mixture of genetic traits.

One of the basic properties of life is reproduction, the capacity to generate new individuals, and sex is an aspect of this process.

Life has evolved from simple stages to more complex ones, and so have the reproduction mechanisms.

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Chromosomes are passed on from one generation to the next in this process.