How many ova are released in the case of maternal twins and fraternal twins respectively in human ?

Options

A. 2,2
B. 1,1
C. 1,2
D. 2,1

Answer

To answer the question about how many ova are released in the case of maternal (identical) twins and fraternal (non-identical) twins in humans, we can break it down into clear steps:

### Step-by-Step Solution:

1. **Understanding Maternal Twins (Identical Twins)**:
- Maternal twins, also known as identical twins, occur when a single ovum (egg) is fertilized by a sperm and then divides into two separate zygotes.
- Since only one ovum is involved in this process, the number of ova released in the case of maternal twins is **1**.

2. **Understanding Fraternal Twins (Non-Identical Twins)**:
- Fraternal twins occur when two separate ova are fertilized by two different sperm cells. Each ovum is fertilized independently, leading to the development of two genetically distinct individuals.
- Therefore, the number of ova released in the case of fraternal twins is **2**.

3. **Conclusion**:
- In summary, the number of ova released in the case of maternal twins is **1**, and in the case of fraternal twins, it is **2**.

### Final Answer:
- The answer is: **1 ovum for maternal twins and 2 ova for fraternal twins**.

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