Difference between revisions of "Sexual Reproduction"
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: [[Species]] which engage in '''sexual reproduction''' have large genetic [[variation]] within the [[population]]. This provides an advantage for the [[species]] survival as it produces more [[organism]]s which a chance of surviving a change in the environment. | : [[Species]] which engage in '''sexual reproduction''' have large genetic [[variation]] within the [[population]]. This provides an advantage for the [[species]] survival as it produces more [[organism]]s which a chance of surviving a change in the environment. | ||
: '''Sexual reproduction''' takes longer than [[Asexual Reproduction|asexual reproduction]] because parent [[organism]]s have to find one another and then engage in [[intercourse]]. | : '''Sexual reproduction''' takes longer than [[Asexual Reproduction|asexual reproduction]] because parent [[organism]]s have to find one another and then engage in [[intercourse]]. | ||
| + | |||
| + | ===Advantages of Sexual Reproduction=== | ||
| + | : There are advantages of '''sexual reproduction''' over [[Asexual Reproduction|asexual reproduction]]: | ||
| + | :*'''Sexual reproduction''' results in a wide range of [[variation]] in their [[offspring]] which is useful in case environmental changes occur increasing the chances that some members of the [[species]] have suitable traits to survive this change. | ||
| + | :*Due to the greater [[variation]] in [[offspring]] this allows [[Evolution by Natural Selection|evolution]] to take place more quickly. | ||
| + | |||
| + | ===Disadvantages of Sexual Reproduction=== | ||
| + | : There are disadvantages of '''sexual reproduction''' over [[Asexual Reproduction|asexual reproduction]]: | ||
| + | :*[[Organism]]s which '''reproduce sexually''' need to search for or attract a mate in order to have offspring. This takes time and [[energy]]. | ||
| + | :*'''Sexual reproduction''' is faster than [[Asexual Reproduction|asexual reproduction]] so fewer [[offspring]] can be made in a given time. | ||
Revision as of 12:46, 25 June 2019
Contents
Key Stage 3
Meaning
Sexual reproduction is when two parents are need to produce offspring.
Key Stage 4
Meaning
Sexual reproduction is when two parent organisms share DNA to produce offspring.
About Sexual Reproduction
- Sexual reproduction begins with the production of gametes which are haploid cells. These gametes are produced by meiosis.
- In sexual reproduction gametes from each parent fuse together in fertilisation to produce a diploid cell which is a new organism.
- Sexual reproduction results in offspring that are genetically different from each parent.
- Species which engage in sexual reproduction have large genetic variation within the population. This provides an advantage for the species survival as it produces more organisms which a chance of surviving a change in the environment.
- Sexual reproduction takes longer than asexual reproduction because parent organisms have to find one another and then engage in intercourse.
Advantages of Sexual Reproduction
- There are advantages of sexual reproduction over asexual reproduction:
- Sexual reproduction results in a wide range of variation in their offspring which is useful in case environmental changes occur increasing the chances that some members of the species have suitable traits to survive this change.
- Due to the greater variation in offspring this allows evolution to take place more quickly.
Disadvantages of Sexual Reproduction
- There are disadvantages of sexual reproduction over asexual reproduction:
- Organisms which reproduce sexually need to search for or attract a mate in order to have offspring. This takes time and energy.
- Sexual reproduction is faster than asexual reproduction so fewer offspring can be made in a given time.