Definition sexual reproduction

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Some animals produce offspring through asexual reproduction while other animals produce offspring through sexual reproduction. Both methods have advantages and disadvantages. Asexual reproduction produces offspring that are genetically identical to the parent because the offspring are all clones of the original parent.

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Individual organisms come and go, but, to a certain extent, organisms transcend time through producing offspring. Reproduction in animals occurs in two primary ways, through sexual reproduction and through asexual reproduction. While most animal organisms reproduce by sexual means, some are also capable of reproducing asexually.

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Mottled ducks Anas fulvigula lay their eggs in grass nests near to the ground, usually close by water. Though this nest looks quite full with nine eggs, a clutch of mottled duck eggs can contain as many as twelve or thirteen eggs. Organisms are genetically diverse because of sexual reproduction.

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Understanding the science of sexual reproduction will give you a better understanding of your body and how contraception works. Learn more about pregnancy at pregnancy. We use cookies to improve functionality and performance.

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That is the main difference between sexual and asexual reproduction. Sexual reproduction just means combining genetic material from two parents. Asexual reproduction produces offspring genetically identical to the one parent.

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Sexual reproduction is the process through which two parents produce offspring which are genetically different from themselves and have new combinations of their characteristics. This contrasts with asexual reproductionwhere one parent produces offspring genetically identical to itself. During sexual reproduction, each parent contributes one haploid gamete a sex cell with half the normal number of chromosomes.

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Parthenogenesisa reproductive strategy that involves development of a female rarely a male gamete sex cell without fertilization. It occurs commonly among lower plants and invertebrate animals particularly rotifersaphidsantswaspsand bees and rarely among higher vertebrates. An egg produced parthenogenetically may be either haploid i. Parthenogenic species may be obligate that is, incapable of sexual reproduction or facultative that is, capable of switching between parthenogenesis and sexual reproduction depending upon environmental conditions.

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Sexual reproduction is a process of biological reproduction by which organisms create descendants that have a combination of genetic material contributed by two different gametes, usually from two different organisms. A gamete is a mature reproductive or sex cell. Sexual reproduction results in increasing genetic diversity, since the union of these gametes produces an organism that is not genetically identical to the parent s.

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Sexual reproduction involves the joining of two sex cells, or gametes during fertilisation. Organisms produced by sexual reproduction have two parents and are genetically similar to both but not identical to either. The advantages of sexual reproduction:. The disadvantages of sexual reproduction:.

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