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Evolution and Population Genetics > Symbols and Maths necessary to know > Flashcards

Symbols and Maths necessary to know Flashcards

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1
Q

What is the symbol for narrow sense heritability?

A

h2

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2
Q

What is the symbol for the rate of mutant substituation per year during evolution?

A

k

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3
Q

What is the symbol for the allele frequences for a di-allelic locus?

A

p, q

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4
Q

What is the symbol for allelic frequencies in generations 0 and t?

A

p0, pt

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5
Q

What is the symbol for equilibrium allele frequencies

A

pat (hat), q (hat)

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6
Q

What is the symbol for the response to selection

A

R

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7
Q

What is the equation for Response to selection (R)

A

narrow sense heritability (h2) x selective differential (s)

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8
Q

What is the symbol for selection coefficient

A

s, si

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9
Q

What is the symbol for selection differential

A

s

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10
Q

What is the symbol for the additive component of genetic variance

A

VA

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11
Q

What is the symbol for the dominance component of genetic variance

A

VD

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12
Q

What is the symbol for the environmental component of phenotypic variance

A

VE

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13
Q

What is the symbol for genetic component of phenotypic variance

A

VG

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14
Q

What is the symbol for epistatic component of genetic variance

A

VI

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15
Q

What is the symbol for the total phenotypic variance

A

VP

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16
Q

What is the symbol for the relative fitness of the ith genotype (usually relative to the fittest genotype)

A

Wi

17
Q

What is the symbol for the mean fitness

A

w bar

18
Q

What is the symbol for the change in the allele frequency between generations

A

Δq

19
Q

What is the symbol for the forward mutation rate per generation

A

µ

20
Q

What is the symbol for backward mutation rate per generation

A

ν

21
Q

What are the Hardy - Weinberg expected genotype frequencies?

A

p2 : 2pq : q2

22
Q

What is the breeders’ equation from selection experiments?

A

breeders’ equation: R = h2s

23
Q

What is the equilibrium allele frequency under heterozygote advantage?

A

q = s/(s+t) where s and t are the selection coefficients for the two homozygotes

24
Q

What different selection models are present when worling out the fitness of a genotype?

A

directional, frequency dependent, heterozygote advantage

25
Q

What is the equilibrium freuqnces for very rare disadvantageous alleles when they are dominant?

A

q = μ/s (dominant)

26
Q

What is the equilibrium freuqnces for very rare disadvantageous alleles when they are recessive?

A

q = √(μ/s) (recessive).

Evolution and Population Genetics (13 decks)

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