If the cell of an organism heterozygous for three pairs of genes represented by AaBbCc, undergoes meiosis then possible type of gametes will be :-

Options

A. 4
B. 2
C. 8
D. 12

Answer

To determine the possible types of gametes produced by an organism that is heterozygous for three pairs of genes (AaBbCc), we can follow these steps:

### Step 1: Identify the number of gene pairs
The organism is heterozygous for three pairs of genes: A/a, B/b, and C/c. This means there are three pairs of alleles.

### Step 2: Use the formula for calculating gametes
The number of different types of gametes that can be formed is given by the formula:
\[ \text{Number of gametes} = 2^n \]
where \( n \) is the number of heterozygous gene pairs.

### Step 3: Substitute the value of \( n \)
In this case, since there are 3 pairs of genes (A/a, B/b, C/c), we substitute \( n = 3 \):
\[ \text{Number of gametes} = 2^3 = 8 \]

### Step 4: List the possible gametes
To understand what these gametes are, we can list them based on the combinations of alleles:
1. ABC
2. ABc
3. AbC
4. Abc
5. aBC
6. aBc
7. abC
8. abc

### Conclusion
Thus, the possible types of gametes that can be formed from the organism heterozygous for three pairs of genes (AaBbCc) are 8.

### Final Answer
The correct option is 8.

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