Assisted reproductive technology, IVF involves transfer of

Options

A. Embryo with 16 blastomeres into the fallopian tube
B. ovum into the fallopian tube
C. zygote into the fallopian tube
D. Zygote into the uterus

Explanation

**Step-by-Step Solution:**

1. **Understanding IVF**: In vitro fertilization (IVF) is a type of assisted reproductive technology where fertilization occurs outside the body, typically in a laboratory setting.

2. **Gametes Involved**: IVF involves the fertilization of male gametes (sperm) and female gametes (ova). This process results in the formation of a zygote.

3. **Formation of Zygote**: After fertilization, a zygote is formed. This zygote can also be referred to as an early embryo, especially when it has divided into a few cells (up to 8 blastomeres).

4. **Transfer of the Zygote**: In the context of IVF, the zygote or early embryo is transferred to the female reproductive system. The specific procedure for transferring a zygote is known as Zygote Intrafallopian Transfer (ZIFT).

5. **Location of Transfer**: The zygote is typically transferred into the fallopian tube rather than directly into the uterus. This is because the fallopian tube is where natural fertilization occurs, and placing the zygote there can facilitate further development.

6. **Conclusion**: Based on the understanding of IVF and the transfer process, the correct answer to the question is that IVF involves the transfer of a zygote into the fallopian tube.

**Final Answer**: The correct option is the third one: zygote into the fallopian tube.

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