7.2 Populations Flashcards

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1
Q

define population

A

group of organisms of the same species occupying a particular space that can interbreed

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2
Q

what is the gene pool

A

the total number of alleles present in the population

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3
Q

what is the allelic frequency

A

the proportion of a certain allele in the gene pool relative to the other alleles for that gene

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4
Q

what is the hardy-weinburg principle used for

A

to estimate the frequency of alleles in a population to see if any changes are occurring over time

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5
Q

what does the hardy-weinburg principle state as long as the conditions are constant

A

that the allele frequency will not change from one generation to the next

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6
Q

what are the 5 conditions for the hardy Weinberg principle

A
  • No mutations occur
  • No movement of alleles in or out of the population due to migration
  • Population is suitably large
  • there is no selectional advantage (all alleles have equal change of being inherited)
  • Mating is random (all genotypes can breed with all others)
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7
Q

What are the two equations

A

p + q = 1
p^2 + 2pq + q^2 =1

where p is the frequency of the dominant allele and q is the recessive

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