Class 12 · Reproductive Health

Embryo Transfer Site in ET — NEET Biology

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📖 NCERT Source

In E. T. techniques, embryos are always transferred into the uterus.

NCERT Biology · Class 12 · Chapter 3 · Paragraph 57
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Assertion (A): Embryo transfer techniques in ART depend on the developmental stage of the embryo. Reason (R): Early embryos with up to 8 blastomeres are transferred into the uterus while embryos with more than 8 blastomeres are transferred into the fallopian tube.

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Correct answer: A If both assertion and reason are true and the reason is the correct explanation of the assertion.

NCERT confirms that transfer location depends on developmental stage (Assertion true). However, NCERT states “The zygote or early embryos (with upto 8 blastomeres) could then be transferred into the fallopian tube (ZIFT) and embryos with more than 8 blastomeres, into the uterus (IUT)” - the Reason reverses the correct locations. Early embryos go to fallopian tube, later embryos to uterus.

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What does NCERT say about E T techniques embryos?
In E. T.
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Which chapter is this from?
Reproductive Health, Class 12 NCERT Biology.

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