TIFR GS Biology Mock Test 01

Which of the following element plays an important role in the nitrogen fixation process?

The transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:

The ABO blood groups in humans are controlled by the gene I. It has three alleles − IA, IB and i. Since there are three different alleles, six different genotypes are possible. How many phenotypes can occur?

The low Ca2+ ion concentration in the body fluid may be the cause of:

The nerve centres in the brain which control the body temperature and the urge for eating:

During mitosis ER and nucleolus begin to disappear at:

Darwin's finches are a good example of:

The common nitrogen-fixing microorganism in paddy fields is:

Which of the following statement is true regarding the transport of CO2 in the body?

The  main function of goblet cells are:

The satellite DNA can be effectively used in:

If the fertilized egg of a plant has 40 chromomes, the number of chromosomes present in the pollen mother cell will be:

The study of migration of birds is known as

A membrane bound enzyme that catalyzes the formation of cAMP from ATP is:

Which of the following is NOT an adaptation of hydrophytes?