Flashcards in Symbols and Maths necessary to know Deck (26)

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1

## What is the symbol for narrow sense heritability?

### h2

2

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

### k

3

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

### p, q

4

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

### p0, pt

5

## What is the symbol for equilibrium allele frequencies

### pat (hat), q (hat)

6

## What is the symbol for the response to selection

### R

7

## What is the equation for Response to selection (R)

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

8

## What is the symbol for selection coefficient

### s, si

9

## What is the symbol for selection differential

### s

10

## What is the symbol for the additive component of genetic variance

### VA

11

## What is the symbol for the dominance component of genetic variance

### VD

12

## What is the symbol for the environmental component of phenotypic variance

### VE

13

## What is the symbol for genetic component of phenotypic variance

### VG

14

## What is the symbol for epistatic component of genetic variance

### VI

15

## What is the symbol for the total phenotypic variance

### VP

16

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

### Wi

17

## What is the symbol for the mean fitness

### w bar

18

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

### Δq

19

## What is the symbol for the forward mutation rate per generation

### µ

20

## What is the symbol for backward mutation rate per generation

### ν

21

## What are the Hardy - Weinberg expected genotype frequencies?

### p2 : 2pq : q2

22

## What is the breeders' equation from selection experiments?

### breeders’ equation: R = h2s

23

## What is the equilibrium allele frequency under heterozygote advantage?

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

24

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

### directional, frequency dependent, heterozygote advantage

25

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

### q = μ/s (dominant)

26