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Variation in sexually reproducing species

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Sexual reproduction produces offspring that resemble their parents, but are not identical to them. Asexual reproduction produces offspring - clones - which are genetically identical to their parents.

Plants can be cloned artificially using cuttings or tissue culture. Animals can be cloned using embryo transplants or fusion cell cloning.

Asexual species often harbour a...

Genetic information from one species can be transferred to another species using genetic modification. Organisms have sex cells called gametes. In human beings, the male sex cells are called sperm and the female sex cells are called eggs or ova.

In order to see this content you need to have both Javascript enabled and Flash installed. Visit BBC Webwise for full instructions. Sexual reproduction happens when a male gamete and a female gamete join. This fusion of gametes is called fertilisation.

Sexual reproduction allows some of the genetic information from each parent to mix, producing offspring that resemble their parents but are not identical to them. In this way, sexual reproduction leads to variety in the offspring.

Sexual reproduction results in greater...

Animals and plants can reproduce using sexual reproduction. In human beings, each gamete contains 23 chromosomeshalf the number found in the other cells of the body.

When the male and female gamete fuse, the new embryo contains the full 46 chromosomes — half from the father and half from the mother.

Back to Genetic variation and its control index. This page is best viewed in an up-to-date web browser with style sheets CSS enabled. While you will be able to view the content of this page in your current browser, you will not Variation in sexually reproducing species able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets CSS if you are able to do so.

This page has been archived and is no longer updated. Find out more about page archiving. Activity Reproduction and Cloning Fed up of reading?

On the web S-Cool! In truth, however, sex does not always increase variation.

No single species progresses too...

Furthermore, many species can reproduce both sexually and asexually, without the frequency of. Sexual reproduction results in greater variation among offspring than does asexual The timing of meiosis and fertilization does vary among species.

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