If a genotype consists of different types of alleles, it is called

Options

A. Homozygous
B. Heterozygous
C. Monoallelic
D. Uniallelic

Answer

To answer the question, "If a genotype consists of different types of alleles, it is called," we need to analyze the provided options:

1. **Homozygous**: This term refers to a genotype that has two identical alleles for a particular gene. For example, if a plant has two alleles for tallness (TT) or two alleles for dwarfness (tt), it is homozygous. Since the question specifies different types of alleles, this option is incorrect.

2. **Heterozygous**: This term is used when a genotype has two different alleles for a particular gene. For example, a plant with one tall allele (T) and one dwarf allele (t) (Tt) is heterozygous. This matches the question's requirement of having different types of alleles, making this option correct.

3. **Monoallelic**: This term typically refers to a condition where only one allele is present for a gene. This is not applicable here since the question is about having different alleles, so this option is incorrect.

4. **Uniallelic**: Similar to monoallelic, this term indicates the presence of a single allele. This does not fit the question's criteria, so this option is also incorrect.

Based on the analysis, the correct answer is **heterozygous**.

### Step-by-Step Solution:
1. **Understand the terms**: Familiarize yourself with the definitions of homozygous, heterozygous, monoallelic, and uniallelic.
2. **Analyze each option**: Go through each option to see if it fits the description of having different types of alleles.
3. **Identify the correct term**: Determine which term correctly describes a genotype with different alleles, which is heterozygous.
4. **Conclude the answer**: State that the answer to the question is heterozygous.