Which method of crop improvement can be practised by a farmer if he is inexperienced?

(a)

clonal selection

(b)

mass selection

(c)

pureline selection

(d)

hybridisation

Himgiri developed by hybridisation and selection for disease resistance against rust pathogens is a variety of _______.

(a)

chilli

(b)

maize

(c)

sugarcane

(d)

wheat

Which of the following is used to produce products useful to humans by biotechnology techniques?

(a)

enzyme from organism

(b)

live organism

(c)

vitamins

(d)

both (a) and (b)

rDNA is a

(a)

vector DNA

(b)

circular DNA

(c)

recombinant of vector DNA and desired DNA

(d)

satellite DNA

Organisms with modified endogenous gene or a foregin gene are also known as

(a)

transgenic organsims

(b)

genetically modified

(c)

mutated

(d)

both a and b