Which of the following is not true regarding artificial insemination?

Options

A. Ideal parents are carefully chosen before the female is impregnated.
B. The semen may be used immediately or can be frozen and used at a later date
C. The fertilised eggs at 8-32 cells stages, are recovered from the original parent non-surgically and transferred to surrogate mothers.
D. It helps in overcoming several problem of normal matings.

Answer

To determine which statement is not true regarding artificial insemination, let's analyze each option step by step.

### Step 1: Understand Artificial Insemination
Artificial insemination (AI) is a reproductive technology used in animal breeding where semen is collected from a male (e.g., bull) and then directly introduced into the female reproductive tract (e.g., cow) to achieve pregnancy. This technique allows for controlled breeding and can improve genetic quality.

### Step 2: Analyze Each Statement
1. **Statement 1**: "Ideal parents are carefully chosen before the female is impregnated."
- This statement is true. In artificial insemination, careful selection of superior genetic traits in both male and female is essential for improving offspring quality.

2. **Statement 2**: "The semen may be used immediately or can be frozen and used at a later date."
- This statement is also true. One of the advantages of artificial insemination is that semen can be preserved through freezing, allowing it to be stored for future use or transported over long distances.

3. **Statement 3**: "The fertilized egg at 8 to 32 cell stage are recovered from the original parent non-surgically and transferred to surrogate mothers."
- This statement is not true regarding artificial insemination. This process describes a different technique known as Multiple Ovulation Embryo Transfer (MOET), where embryos are collected and transferred, not the insemination process itself.

4. **Statement 4**: "It helps in overcoming several problems of normal mating."
- This statement is true. Artificial insemination can help address issues such as infertility in females or logistical challenges in natural mating.

### Conclusion
The statement that is not true regarding artificial insemination is the third one about recovering fertilized eggs at the 8 to 32 cell stage and transferring them to surrogate mothers, as this pertains to a different reproductive technology.

### Final Answer
The correct answer is: **"The fertilized egg at 8 to 32 cell stage are recovered from the original parent non-surgically and transferred to surrogate mothers."**

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