sexual reproduction

reproduction /re·pro·duc·tion/ (re″pro-duk´shun)

1. the production of offspring by organized bodies.

2. the creation of a similar object or situation; duplication; replication.reproduc´tive

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asexual reproduction  reproduction without the fusion of sexual cells.

cytogenic reproduction  production of a new individual from a single germ cell or zygote.

sexual reproduction  reproduction by the fusion of a female gamete and a male gamete(bisexual r.) or by development of an unfertilized egg (unisexual r.).

somatic reproduction  production of a new individual from a multicellular fragment by fission or budding.

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sexual reproduction

n.

Reproduction by the union of male and female gametes to form a zygote. Also called syngenesis.

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sexual reproduction

Etymology: L, sexus, sex, re + producere, to produce

replication of an organism by the formation of gametes. Generally this requires the fusion of male spermatozoa and female ova. Parthenogenesis is an exception. Also called sexual generation, syngenesis.

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reproduction

1. the process by which a living entity or organism produces a new individual of the same kind. It may be asexual or sexual.

2. the creation of a similar object or situation; duplication; replication.

In sexual reproduction the gonads, or sex glands—the ovaries in the female and the testes in the male—produce the germ cells that unite and grow into a new individual. Reproduction begins when the germ cells unite, the process called fertilization.

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asexual reproduction

reproduction without the fusion of germ cells; usually by budding or fission.

cytogenic reproduction

production of a new individual from a single germ cell or zygote.

sexual reproduction

reproduction by the fusion of a female germ cell with a male sexual cell or by the development of an unfertilized egg.

somatic reproduction

production of a new individual from a multicellular fragment by fission or budding.