If four different types of gametes are produced in equal proportion from the dihybrid individual the inheritance is

Options

A. Independent assortment
B. Linkage
C. Incomplete linkage
D. Complete linkage

Answer

To solve the question regarding the inheritance pattern when four different types of gametes are produced in equal proportion from a dihybrid individual, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Dihybrid Cross**: A dihybrid cross involves two traits, each represented by two alleles. For example, consider traits for seed color (Yellow - Y, Green - y) and seed shape (Round - R, Wrinkled - r).

2. **Identify the Genotype of the Parents**: In this case, we have a homozygous dihybrid individual, which means it has the genotype YR/YR (for yellow and round seeds).

3. **Gamete Formation**: When this dihybrid individual undergoes meiosis, it can produce gametes. Since it is homozygous for both traits (YR), it will produce only one type of gamete: YR.

4. **Independent Assortment**: According to Mendel's law of independent assortment, if the genes for the two traits are located on different chromosomes, they will assort independently during gamete formation. This leads to the formation of four different types of gametes in equal proportions (YR, Yr, yR, and yr) if the individual is heterozygous for both traits.

5. **Conclusion**: Since the question states that four different types of gametes are produced in equal proportion, this indicates that the inheritance follows the principle of independent assortment.

### Final Answer:
The inheritance is **independent assortment**.

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