Q. 1. An element playing important role in nitrogen fixation is :
Q. 2. Select the correct statement from the ones given below:
Q. 3. Listed below are four respiratory capacities (a − d) and four jumbled respiratory volumes of a normal human adult: Respiratory Respiratory
Which one of the following is the correct matching of two capacities and volumes?
Q. 4. Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:
Q. 5. 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?