Download App

Reproductive Health — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYReproductive Health3 Marks
Question
How are assisted reproductive technologies helpful to humans? How are ZIFT and GIFT different from intra uterine transfers? Explain.
✓

Answer

The infertile couples could be assisted to have children through certain special techniques known as assisted reproductive technologies (ART).

  1. ZIFT: The zygote or early embryo with up to 8 blastomeres is transferred into the fallopian tube. This is called zygote intra-fallopian transfer (ZIFT).

  2. GIFT: Gamete intra-fallopian transfer is the transfer of an ovum collected from a donor into the fallopian tube of another female who cannot produce one but can provide a suitable environment for fertilisation and further development of the embryo.

Intra-uterine transfer (IUT) refers to the introduction of an embryo with more than 8 blastomeres into the uterus of a female to complete its further development. 

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "3 Marks Question" from Reproductive Health→Reproductive Health — all question types→BIOLOGY STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

A large number of married couples the world over are childless. It is shocking to know that in India the female partner is often blamed for the couple being childless.
Why in your opinion the female partner is often blamed for such situations in India?
→
Female reproductive organs and associated functions are given below in column A and B. Fill in the blank boxes.
Column A
Column B
Ovaries
Ovulation
Oviduct
A
B
Pregnancy
Vagina
Birth
→
A non biology person is quite shocked to know that apple is a false fruit, mango is a true fruit and banana is a seedless fruit. As a biology student how would you satisfy this person.
→
In a sea shore, the benthic animals live in sandy, muddy and rocky substrata and accordingly developed the following adaptations.
  1. Burrowing.
  2. Building cubes.
  3. Holdfasts/ peduncle.
Find the suitable substratum against each adaptation.
→
In a monohybrid cross of plants with red and white flowered plants, Mendel got only red flowered plants. On self-pollinating these F1 plants got both red and white flowered plants in 3 : 1 ratio. Explain the basis of using RR and rr symbols to represent the genotype of plants of parental generation.
→
You have identified a useful gene in a bacteria. Make a flow chart of the steps that you would follow to transfer this gene to a plant.
→
  1. What are the transcriptional products of RNApolymerase III?
  2. Differentiate between 'Capping' and 'Tailing'.
  3. Expand hnRNA.
→
The generative cell of a 2-celled pollen divides in the pollen tube but not in a 3-celled pollen. Give reasons.
→
Suggest the aspects of reproductive health which need to be given special attention in the present scenario.
→
  1. What are “molecular scissors”? Give one example.
  2. Explain their role in recombinant DNA technology.
→