Hardy–Weinberg: Carriers Calculator
🧬 Genetics & evolution. Use the Hardy–Weinberg: carriers formula to find fraction heterozygous, q (recessive allele): pick the value you want, type the others, and the answer updates as you go.
The fraction of heterozygotes (carriers), who have the allele but don’t show it.
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Fraction heterozygous | no unit |
| q (recessive allele) | no unit |
Worked example
Find the fraction heterozygous when q (recessive allele) = 0.7.
Using 2pq = 2q(1 - q): Fraction heterozygous = 0.42.
Frequently asked questions
What is the formula for Hardy–Weinberg: carriers?
2pq = 2q(1 - q). The fraction of heterozygotes (carriers), who have the allele but don’t show it.
What do the letters stand for, and what units are used?
Fraction heterozygous, q (recessive allele).
How do you calculate fraction heterozygous?
Put the values into 2pq = 2q(1 - q). For example, with q (recessive allele) = 0.7, fraction heterozygous = 0.42.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (fraction heterozygous, q (recessive allele)) and fill in the others: it rearranges the formula for you.
