Q.Choose the correct statement regarding the ZIFT procedure:

Zygote Intrafallopian Transfer (ZIFT) is an Assisted Reproductive Technology (ART) used when a female cannot conceive naturally. In this procedure, ova are collected from the wife or a donor female, and sperm from the husband or a donor male. These gametes are then fertilized in vitro (outside the body, in a laboratory setting) to form a zygote. This zygote, or an early embryo with up to eight blastomeres, is then transferred into the fallopian tube of the female. This allows the embryo to continue its development and eventually implant in the uterus, mimicking the natural process.

Let's evaluate the given options:

• (A) describes Gamete Intrafallopian Transfer (GIFT), where gametes (ova and sperm) are transferred to the fallopian tube for in vivo fertilization.
• (C) describes transferring a zygote to the uterus, which is typically done for embryos with more than eight blastomeres (Intrauterine Transfer, IUT), not ZIFT. …

Reproductive health is a crucial aspect of overall well-being, encompassing physical, emotional, social, and behavioural dimensions of reproduction. In some cases, couples face challenges in conceiving naturally, a condition known as infertility. To assist such couples, medical science has developed various Assisted Reproductive Technologies (ARTs). These techniques help overcome barriers to conception and enable individuals to have children.

One such ART is Zygote Intrafallopian Transfer, commonly abbreviated as ZIFT. This procedure is typically recommended for females who cannot conceive due to certain fertility issues, but whose fallopian tubes are functional and can support early embryonic development. The core principle of ZIFT involves fertilisation occurring outside the body, followed by the transfer of the resulting early embryo into the female reproductive tract.

Here's a breakdown of the ZIFT procedure:

• In vitro fertilisation: Ova (eggs) are collected from the female partner or a donor, and sperm are collected from the male partner or a donor. These gametes are then allowed to fertilise each other in a laboratory setting, outside the body. This process is known as in vitro fertilisation (IVF).
• Zygote formation: After successful fertilisation, a zygote is formed. This zygote then begins to divide, forming an early embryo.
• Transfer to fallopian tube: The key characteristic of ZIFT is that this zygote or very early embryo (specifically, an embryo up to 8 blastomeres) is then carefully transferred into the fallopian tube of the female. The fallopian tube provides the natural environment for the embryo to continue its development and eventually reach the uterus for implantation.

Let's evaluate the given options based on this understanding:

• (A) Ova collected from a female donor are transferred to the fallopian tube to facilitate zygote formation.

  This describes the GIFT (Gamete Intrafallopian Transfer) procedure, where gametes (ova) are transferred to the fallopian tube for in vivo fertilisation. This is not ZIFT.

• (B) Zygote is collected from a female donor and transferred to the fallopian tube. …