From the number of homozygous recessive organisms (represented by q2 ) in a population, allele frequency ( q ) of recessive allele is determined. Hence 1-q is allele frequency (p) of dominant allele.

## What is the frequency of homozygous recessive?

The frequency of the recessive allele. Answer: Since we believe that the homozygous recessive for this gene (q^{2}) represents **4%** (i.e. = 0.04), the square root (q) is 0.2 (20%). The frequency of the dominant allele. Answer: Since q = 0.2, and p + q = 1, then p = 0.8 (80%).

## What is the frequency of the homozygous dominant genotype according to the Hardy Weinberg equation?

According to the Hardy-Weinberg principle, the square root of the homozygous genotype frequency is equal to the allele frequency. The dominant allele **frequency is 0.7**.

## What does Hardy Weinberg equation predict?

The Hardy-Weinberg equation is a mathematical equation that can be used to **calculate the genetic variation of a population at equilibrium**. If the p and q allele frequencies are known, then the frequencies of the three genotypes may be calculated using the Hardy-Weinberg equation. …

## What is the frequency of homozygous dominant individuals?

The frequency of homozygous dominant plants (p^{2}) is **(0.6) ^{2} = 0.36**. Out of 100 individuals, there are 36 homozygous dominant (YY) plants. The frequency of heterozygous plants (2pq) is 2(0.6)(0.4) = 0.48. Therefore, 48 out of 100 plants are heterozygous yellow (Yy).

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

The answer is the frequency of the recessive allele **will increase**.

## What is an example of allele frequency?

Example: assuming that in a human population, there are **100 individuals**. Since each of them would have two alleles for a particular character (one allele inherited from the father, the other allele from the mother), the total number of genes in this population is 200 (=100 x 2). … Variant: allelic frequency.

## How do you find the frequency of homozygous dominant?

**Use the Hardy-Weinberg equilibrium.**

- Alleles: p+q=1.
- p=frequency of the dominant allele. …
- p2=frequency of homozygous dominant genotype. …
- In your scenario, the dominant phenotype has a frequency of 0.19 .
- This is misleading, since both the p2 and 2pq terms represent the dominant phenotype. …
- If q2=0.81 , we can determine q .

## How do you calculate phenotype frequency?

**Allele Frequency**

- Allele frequency is most commonly calculated using the Hardy-Weinberg equation, which describes the relationship between two alleles within a population. …
- To find the number of alleles in a given population, you must look at all the phenotypes present. …
- 1 = p
^{2}+ 2pq + q^{2}

## What is the phenotype frequency?

Relative phenotype frequency is **the number of individuals in a population that have a specific observable trait or phenotype**. … Relative genotype frequency and relative allele frequency are the most important measures of genetic variation.