A diploid organism is heterozygous for five loci and homozygous for 2 loci , how many types of gametes can be produced ?

Options

A. 128
B. 32
C. 4
D. 14

Answer

To determine the number of types of gametes produced by a diploid organism that is heterozygous for five loci and homozygous for two loci, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Heterozygous Loci**:
The organism is heterozygous for 5 loci. This means that at each of these loci, there are two different alleles present (for example, Aa, Bb, Cc, Dd, Ee).

2. **Identify the Homozygous Loci**:
The organism is homozygous for 2 loci. This means that at these loci, the alleles are the same (for example, AA, BB). Since homozygous loci do not contribute to the variation in gametes, we will not consider them in our calculations.

3. **Use the Formula for Gamete Production**:
The number of different types of gametes that can be produced from heterozygous loci can be calculated using the formula:
\[ \text{Number of gametes} = 2^n \]
where \( n \) is the number of heterozygous loci.

4. **Calculate the Number of Gametes**:
In this case, \( n = 5 \) (since there are 5 heterozygous loci). Therefore, we calculate:
\[ 2^5 = 32 \]

5. **Conclusion**:
The total number of different types of gametes that can be produced by this diploid organism is 32.

### Final Answer:
The number of types of gametes produced is **32**.