Chapter 21 Evolution Flashcards

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1
Q

Define species.

A

A species is a group of individuals that can exchange DNA through interbreeding.

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2
Q

Define gene pool.

A

A gene pool consists of all the alleles present in all individuals in a species.

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3
Q

Define population.

A

A population is an interbreeding group of organisms of the same species living in the same geographical area.

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4
Q

Define adaptation.

A

Inherited traits that were shaped by natural selection and that promote survival and reproduction.

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5
Q

Define evolution.

A

The change in allele or genotype frequency in a population over time.

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6
Q

Define monophyletic group.

A

A group of organisms that are all descended from the same common ancestor.

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7
Q

What are the Hardy-Weinberg conditions?

A
  1. NO selection (no differential survival or reproduction).
  2. NO mutation.
  3. NO gene flow.
  4. NO genetic drift.
  5. Random Mating.
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