Which of the following is wrongly matched ?

Options

A. IUI - semen collected from husband or donor is artificially introduced either into the vagina or into the uterus
B. GIFT - transfer of embryos with more than 8 blastomeres into the Fallopian tube
C. ICSI - sperm directly injected into the ovum
D. ZIFT - transfer of embryos with upto 8 blastomeres into the Fallopian tube

Answer

To solve the question, we need to analyze each option and determine which one is incorrectly matched with its definition.

### Step-by-Step Solution:

1. **Understanding IUI (Intrauterine Insemination)**:
- IUI involves collecting semen from the husband or a donor and artificially introducing it into the vagina or uterus of a female.
- **Conclusion**: This option is correctly matched.

2. **Understanding GIFT (Gamete Intrafallopian Transfer)**:
- GIFT refers to the transfer of gametes (sperm and egg) into the fallopian tube, not embryos. The statement claims it involves transferring embryos with more than 8 blastomeres, which is incorrect.
- **Conclusion**: This option is incorrectly matched.

3. **Understanding ICSI (Intracytoplasmic Sperm Injection)**:
- ICSI is a procedure where a single sperm is injected directly into an ovum. This definition matches the option provided.
- **Conclusion**: This option is correctly matched.

4. **Understanding ZIFT (Zygote Intrafallopian Transfer)**:
- ZIFT involves transferring a zygote (which has developed from fertilization) into the fallopian tube. The statement mentions transferring embryos with up to 8 blastomeres, which is correct for ZIFT.
- **Conclusion**: This option is correctly matched.

### Final Answer:
The option that is wrongly matched is **B. GIFT**, as it incorrectly describes the procedure by stating it involves the transfer of embryos instead of gametes.

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