List of top Questions asked in PSEB XII

Organic farming does not include chemical fertilizers.
A child may have O blood group if his father and mother have A and AB blood group respectively.
The lymphoid organs are the part of which system of human body?
What are primary lymphoid organs?
Name one primary lymphoid organ and one secondary lymphoid organ found in the human body.
The sterilisation procedure in males is called ________.
Coconut water is an example of a ________ endosperm.
ELISA stands for ________.
During spermiogenesis, nebenkern of the sperm develops from ________ of the spermatid.
Cyclosporin A, which is used as an immunosuppressive agent in organ-transplant patients, is produced by the fungus named ________.
The initiator codon, AUG codes for which of the following amino acids?
Which of the following organic acids can be produced on commercial scale by Aspergillus niger?
Heart shaped embryo is the feature of:
The cavity present in the blastula is called:
An ideal contraceptive should be:
The number of megaspores formed from one megaspore mother cell is:
Which of the following is correct according to Chargaff's rules?
During spermatogenesis, the number of sperms that are formed from 40 spermatogonia, 30 primary spermatocytes, 25 secondary spermatocytes and 15 spermatids respectively are:
Emergency contraceptives are effective if used within:
BOD stands for:
Transplantation of tissues/organs to save certain patients often fails due to rejection of such tissues/organs by the patient. Which type of immune response is responsible for such rejections?
If the amount of adenine in a DNA is 30%, then according to Chargaff's rules, the amount of Uracil and Guanine present in the DNA respectively are:
The method of directly injecting a sperm into ovum in assisted reproductive technology is called:
Main cause of Klinefelter's syndrome is:

The monthly sales of a company for the first six months are given below in Rupees (₹).