2406: The two branches of a plant give two different fruits :- tomatoes and brinjals. This can be explained:

(a) By nature's freak

(b) By grafting one with the other

(c) By hybridisation

(d) Both A and B
2407: Phenylketonuria is an example of an in born error of metabolism. This error refers to

(a) hormonal overproduction

(b) atrophy of endocrine glands

(c) inherited lack of an enzyme

(d) non-disjunction
2408: It has been observed that after-effects of low temperature treatment are helpful in promoting the flowering in certain plants. Through this the vegetative period of plant becomes short and early flowering takes place. This phenomenon is known as

(a) Photoperiodism

(b) Floreignation

(c) Vernalisation

(d) Heliotropism
2409: Who of the following is the author of the book "The Audacity of Hope"?

(a) Bill Clinton
(b) Al Gore
(c) Barack Obama
(d) Hillary Clinton
2410: H1N1 virus is sometimes mentioned in the news with reference to which one of the following diseases?

(a) AIDS
(b) Bird flu
(c) Dengue
(d) Swine flu