GCSE Biology - Sexual & Asexual Reproduction | Gametes

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*** WHAT'S COVERED ***
1. Introduction to Reproduction
* Two main types: sexual and asexual reproduction.
* Examples of organisms using each (plants, animals, bacteria).
2. Sexual Reproduction
* Involves the fusion of male and female gametes (fertilisation).
* Requires two parents.
* Results in offspring with genetic variation (genetically different from parents).
* Offspring inherit characteristics from both parents.
* Gametes (e.g., sperm, egg, pollen) contain half the genetic material (haploid).
* Formation of gametes via meiosis.
* Fusion of gametes restores the full set of chromosomes (diploid).
3. Asexual Reproduction
* Involves only one parent.
* Does not involve gametes or the mixing of genetic material.
* Results in genetically identical offspring (clones).
* Achieved through mitosis in eukaryotic organisms (plants, fungi).
* Achieved through binary fission in prokaryotic organisms (bacteria).

*** CHAPTERS ***
0:00 Sexual vs Asexual Reproduction
0:18 Examples of Reproduction Types
0:33 Sexual Reproduction Explained
0:42 Fertilisation and Genetic Variation
1:06 Gametes (Sperm, Egg, Pollen)
1:39 Gamete Production (Meiosis)
1:46 Sexual Reproduction Without Intercourse
2:08 Asexual Reproduction
2:16 Characteristics
2:28 Mechanisms of Mitosis and Binary Fission

*** PLAYLISTS ***






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