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Heredity - Coggle Diagram
Heredity
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Importance of Variations
Not essential for organism, but important for survival of species
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However, sometimes niches can change due to various environmental factors such as global warming, meteorite hits, etc.
Organisms might not be adapted to these changes in the niche and hence the population can be wiped out
Only those organisms who have variations that allow them to survive will pertain and thus this variation shall also be present in future gens
How Variations
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Reproduction
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More chance in sexual reproduction due to :- 1) Exchange of DNA segs during crossing over in gamete formation and 2) Union of traits from two parents during fertilisation
Traits
Inherited
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Eg: Body Colour, eye colour
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