**Contents**show

## Which variable in the Hardy-Weinberg equation represents the frequency of homozygous recessive phenotype?

is the frequency of the recessive allele. ² is the frequency of individuals with the homozygous dominant genotype. 2 is the frequency of individuals with the heterozygous genotype. ² is the frequency of individuals with the homozygous recessive genotype.

## What is the frequency of the homozygous recessive genotype?

We know that the frequency of the recessive homozygote genotype is q2 and equal to **0.09**. Thus, p = 1 – q ∴ p = 1 – 0.30 = 0.70 ∴The homozygote dominants are represented by p2 = (0.70)2 = 0.49 or 49% Page 2 4.

## What do p and q represent in Hardy-Weinberg?

The Hardy-Weinberg equation is a mathematical equation that can be used to calculate the genetic variation of a population at equilibrium. … where p is the frequency of the “A” allele and **q is the frequency of the “a” allele in the population**.

## Is P or Q recessive?

In the simplest system, with two alleles of the same locus (e.g. A,a), we use the symbol p to represent the frequency of the dominant allele within the population, and **q for the frequency of the recessive allele**.

## How do you find the frequency of recessive alleles?

To determine q, which is the frequency of the recessive allele in the population, simply **take the square root of q ^{2}** which works out to be 0.632 (i.e. 0.632 x 0.632 = 0.4). So, q = 0.63.

…

- The frequency of the recessive allele. …
- The frequency of the dominant allele. …
- The frequency of heterozygous individuals.

## What is the homozygous dominant genotype?

An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. Using the eye color example, this genotype is written **BB**. An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype.

## How do you find the genotype frequency of Hardy-Weinberg?

To calculate the allelic frequencies we simply **divide the number of S or F alleles by the total number of alleles**: 94/128 = 0.734 = p = frequency of the S allele, and 34/128 = 0.266 = q = frequency of the F allele.

…

genotype | observed | expected |
---|---|---|

FF | 7 | 5 |

## What is the frequency of the homozygous recessive genotype BB?

For example: ‘The frequency of genotype Bb in the population is **0.42**.

## How is genotype frequency calculated?

The frequency of genotype Aa is determined by **multiplying 2 times the frequency of A times the frequency of a**. The frequency of aa is determined by squaring a. Try changing p and q to other values, ensuring only that p and q always equal 1.

…

Genotype | Expected Frequency |
---|---|

aa or A_{2}A_{2} |
q * q = q^{2} |

## What will happen to the frequency of the recessive allele?

The frequency will remain the same. Homozygous recessive individuals selectively leaving a population is an example of: … What will happen to the frequency of the recessive allele for the HbS gene when there is an outbreak of malaria? **The frequency will increase**.