Monohybrid cross involves

Options

A. Individuals of two different parents
B. Individuals different in one traits
C. Individuals different in two traits
D. Individual with parent.

Answer

### Step-by-Step Solution:

1. **Definition of Monohybrid Cross**: A monohybrid cross is a genetic cross between two individuals that differ in a single trait. This is a fundamental concept in genetics, particularly in Mendelian inheritance.

2. **Understanding the Parents**: In a monohybrid cross, the parents are typically homozygous for the trait being studied. This means that each parent carries two identical alleles for that trait (e.g., AA and aa).

3. **Focus on One Trait**: The key characteristic of a monohybrid cross is that it examines the inheritance of one specific trait. For example, if we consider the trait of flower color, one parent might have purple flowers (homozygous dominant) and the other might have white flowers (homozygous recessive).

4. **Mendel's Experiment**: The concept of the monohybrid cross was first successfully demonstrated by Gregor Mendel through his experiments with pea plants. He observed how traits were passed from one generation to the next.

5. **Conclusion**: Therefore, the correct answer to the question "Monohybrid cross involves" is that it involves individuals that are different in one trait.

### Final Answer:
Monohybrid cross involves individuals different in one trait.

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