Question
Mention the function of trophoblast in human embryo.

Answer

Trophoblast is the outer layer of blastocyst which helps in the attachment of blastocyst to the endometrium of the uterus.

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

Similar questions

Explain the basis on which the gel electrophoresis technique works. Write any two ways the products obtained through this technique can be utilised.
Name the specific enzyme responsible for nucleotide polymerisation in DNA replication. Write two characteristic features of this enzyme. Name the region on E.coli DNA, where this enzyme can initiate replication.
Write the sex chromosomal complement of the following:
What do you understand by co-dominance? Explain the co-dominance by taking example of blood group in human.
Differentiate between oviparous and viviparous animals with an example of each.
A couple where both husband and wife are producing functional gametes, but the wife is still unable to conceive, is seeking medical aid. Describe any one method that you can suggest to this couple to become happy parents.
What are the areas which have been responsible for the recent advances in biotechnology?
Differentiate between wind pollinated and insect pollinated flowers.
Draw a well labelled diagram of microscopic structure of human sperms.
Ankit attended a blood donation camp to donate blood and came to know that he was HIV positive. He lost interest in studies knowing that. He remained absent from school for a long time. The biology teacher visited his house and talked to him. Ankit started coming to school again and showed interest in studies.
  1. A person detected to be HIV positive should be isolated by the society. Do you agree? Why/ why not?
  2. Write the processes through which, AIDS does not spread.
  3. Who are at higher risk of encountering AIDS?
  4. What sense of responsibility did the biology teacher exhibit?