---
title: "Homozygous Recessive Genotype — AP Bio Definition & Exam Guide"
description: "A homozygous recessive genotype means two copies of the same recessive allele (q²) — the one genotype you can read straight off phenotype in Hardy-Weinberg problems."
canonical: "https://fiveable.me/ap-bio/key-terms/homozygous-recessive-genotype"
type: "key-term"
subject: "AP Biology"
---

# Homozygous Recessive Genotype — AP Bio Definition & Exam Guide

## Definition

A homozygous recessive genotype occurs when an individual has two copies of the same recessive allele for a specific trait.

## Related Study Guides

- [7.5 Hardy-Weinberg Equilibrium](/ap-bio/unit-7/hardy-weinberg-equilibrium/study-guide/DQK5SLWcKmZatpBgPXmV)

## Review

### Related Terms

- Homozygous: An organism that has two identical alleles for a particular gene.
- [Recessive Allele](/ap-bio/key-terms/recessive-allele): An allele that produces its characteristic phenotype only when its paired allele is identical.
- [Genotype](/ap-bio/key-terms/genotype): The genetic makeup of an organism; it can refer to an organism’s entire genetic makeup or the alleles at a particular locus.