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Biology · 2024 · 3 marks
CBSE 2024 · Region 2 · Set 3 · Q25
Describe any three assisted reproductive techniques practised to treat infertility.
Describe any three assisted reproductive techniques practised to treat infertility.
Marking-scheme solution
In vitro fertilization (IVF)-ova and sperms collected from donor induced to
form zygote under simulated conditions in laboratory followed by embryo transplant,
Zygote intra fallopian transfer (ZIFT)-zygote upto $\displaystyle 8$ blastomeres transferred
to fallopian tube,
Intra uterine transfer (IUT)- embryos with more than $\displaystyle 8$ blastomeres
transferred uterus,
Gamete intra fallopian transfer (GIFT)- transfer of an ovum collected from
donor into the fallopian tube of another female who can produce one but can provide suitable environment for further development,
Intra-cytoplasmic sperm injection (ICSI)-the sperm is directly injected into
the ovum,
Artificial insemination (AI)- sperm collected from male is artificially
introduced into female.All Reproductive Health questions2024 question paperNCERT solutions: Reproductive HealthPractice Reproductive Health →
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CBSE Class 12 Biology past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.