In a test cross, the individual is crossed with

Options

A. Homozygous dominant individual
B. Heterozygous individual
C. Homozygous recessive
D. None of the above

Answer

### Step-by-Step Solution:

1. **Understanding Test Cross**: A test cross is a genetic cross used to determine the genotype of an individual exhibiting a dominant phenotype. The individual in question could either be homozygous dominant (having two identical dominant alleles) or heterozygous (having one dominant and one recessive allele).

2. **Identifying the Cross Partner**: In a test cross, the individual with the unknown genotype is crossed with an individual that is homozygous recessive. This means the partner has two recessive alleles for the trait being studied.

3. **Purpose of the Test Cross**: The purpose of this cross is to observe the phenotypes of the offspring. If any offspring exhibit the recessive phenotype, it indicates that the unknown individual is heterozygous. If all offspring show the dominant phenotype, the unknown individual is likely homozygous dominant.

4. **Conclusion**: Therefore, in a test cross, the individual is crossed with a homozygous recessive individual.

### Final Answer:
In a test cross, the individual is crossed with a **homozygous recessive** individual.

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