Enter the recessive q value and the dominant p value into the Heterozygous Frequency Calculator. The calculator will evaluate the Heterozygous Frequency.

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## Heterozygous Frequency Formula

The following two example problems outline the steps and information needed to calculate the Heterozygous Frequency.

**HF = 2*q*p**

Variables:

- HF is the Heterozygous Frequency ( )
- q is the recessive q value
- p is the dominant p value

## How to Calculate Heterozygous Frequency?

The following steps outline how to calculate the Heterozygous Frequency.

- First, determine the recessive q value.
- Next, determine the dominant p value.
- Next, gather the formula from above = HF = 2*q*p.
- Finally, calculate the Heterozygous Frequency.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

recessive q value = .2

dominant p value = .8

HF = 2*q*p** **= ?