Explain the following terms:
(1) Mutation
Mutation is a sudden inheritable change in one or more genes or in the number of or in the structure of chromosomes which causes changes in certain traits.
Differentiate between the following on the basis of what is given in brackets:
Tonoplast and plasma membrane (location)
Differentiate between the following on the basis of what is given in brackets:
DPT and BCG (expanded form of the vaccine)
Differentiate between the following on the basis of what is given in brackets:
Wall pressure and turgor pressure (explain briefly)
Mention three reasons why the growth of population has not been appreciably checked in India.
Differentiate between the following on the basis of what is given in brackets:
Rods and cones (pigment present)
Name any two microbes which cause diseases in man. In each case, give an example of diseases caused by them.
Differentiate between the following on the basis of what is given in brackets:
(i) Myopia and hypermetropia (condition of eyeball)
