Science (English Medium) इयत्ता १२ - CBSE Question Bank Solutions for Biology

What is the Founder's effect?

Explain one application of the following:
ZIFT

Answer the following question.
Describe the roles of heat, primers, and the bacterium Thermus aquaticus in the process of PCR.

Answer the following question.
Explain the various steps involved in the production of artificial insulin.

According to the Hardy-Weinberg principle, the allele frequency of a population remains constant. How do you interpret the change of frequency of alleles in a population?

Describe the role of high temperature.

Describe the role of primers.

Describe the role of bacterium Thermus aquaticus in carrying the process of polymerase chain reaction.

How does the Hardy-Wienberg equation explain genetic equilibrium?

The procedure of GIFT involves the transfer of female gametes into the fallopian tube, can gametes be transferred to the uterus to achieve the same result? Explain.

The first clinical gene therapy was done for the treatment of ________.

How was Insulin obtained before the advent of rDNA technology? What were the problems encountered?

ELISA technique is based on the principles of antigen-antibody interaction. Can this technique be used in the molecular diagnosis of a genetic disorder, such as phenylketonuria?

PCR is a useful tool for early diagnosis of an Infectious disease. Elaborate.

The method of directly injecting a sperm into ovum in assisted by reproductive technology is called ______.

Which Artificial Reproductive Technique can help a lady conceive a child if both her fallopian tubes are blocked?

In ______ the egg is first fertilized outside the body and then it is inserted into the oviduct.

The highly sophisticated procedure of directly injecting a sperm into an egg is called ______.

In case of a couple where the male is having a very low sperm count, which technique will be suitable for fertilisation?

Test-tube baby is one who ______.