Given below are four statement (a-d) regarding assisted reproductive technologies :
Select the option which include one only :
(a) ZIFT - The zygote or early correct one (only blastomere) transferred into the fallopian tube
(b) ICSI - A sperm is directly injected into the fallopian tube to form an embryo in the laboratory
(c) IUI - The semen collected either from the husband or healthy donor is artificially introduced either into the vargina or into the uterus
(d) GIFT - Transfer of zygote collected from a donor into the fallopian tube of another female who cannot produce one but can provide suitable environment for fertilisation and development.

Options

A. Statement (b), (c) and (d)
B. Statement (a), (c)
C. Statement (c), (d)
D. Statement (a), (c) and (d)

Answer

To solve the question regarding assisted reproductive technologies, we need to analyze each statement (a-d) and determine which one is correct. Let's break this down step by step:

### Step 1: Analyze Statement (a)
- **Statement (a)**: ZIFT - The zygote or early embryo (only blastomere) transferred into the fallopian tube.
- **Analysis**: This statement is mostly correct. ZIFT stands for Zygote Intrafallopian Transfer. In this procedure, a zygote (or early embryo) is indeed transferred into the fallopian tube. However, it should be noted that it is not just a single blastomere but a zygote or early embryo.

### Step 2: Analyze Statement (b)
- **Statement (b)**: ICSI - A sperm is directly injected into the fallopian tube to form an embryo in the laboratory.
- **Analysis**: This statement is incorrect. ICSI stands for Intracytoplasmic Sperm Injection, where a single sperm is injected directly into a mature egg in the laboratory, not into the fallopian tube.

### Step 3: Analyze Statement (c)
- **Statement (c)**: IUI - The semen collected either from the husband or healthy donor is artificially introduced either into the vagina or into the uterus.
- **Analysis**: This statement is correct. IUI stands for Intrauterine Insemination, where sperm is introduced into the uterus to increase the chances of fertilization.

### Step 4: Analyze Statement (d)
- **Statement (d)**: GIFT - Transfer of zygote collected from a donor into the fallopian tube of another female who cannot produce one but can provide suitable environment for fertilization and development.
- **Analysis**: This statement is incorrect. GIFT stands for Gamete Intrafallopian Transfer, where both eggs and sperm are placed in the fallopian tube, allowing fertilization to occur inside the body, not the transfer of a zygote.

### Conclusion
After analyzing all four statements:
- **Correct Statements**: (a) and (c) are correct.
- **Incorrect Statements**: (b) and (d) are incorrect.

The option that includes only one correct statement is option **C** (IUI).

### Final Answer
The correct option is **C** (IUI).

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