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Biology, Evolution > Natural Selection > Flashcards

Natural Selection Flashcards

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1
Q

Define Natural Selection

A

Process whereby environment selects the better adapted to survive and reproduce

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2
Q

what were Darwins observation with regards to Natural Selection

A
  1. More offspring are produced than required
  2. Natural Variation
  3. Change in variation results in differential reproduction
    ( Variated organisms are better adapted to reproduce)
  4. Characteristics/ traits were heritable
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3
Q

what natural selection do?

A

Operates on variation of organisms

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4
Q

causes genetic variation

A
  1. Germ- Line Mutation
  2. Duplication genes swapping
  3. Whole chromosomes deleted/duplicated
  4. Sexual Reproduction- new combination of alleles
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5
Q

Define Gene Flow

A

movement of genes between populations, occurs during migration

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Biology, Evolution (7 decks)

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