Pusa Komal is a disease resistant variety of _________.

(a)

sugarcane

(b)

rice

(c)

cow pea

(d)

maize

The miracle rice which saved millions of lives and celebrated its 50th birthday is _______.

(a)

IR 8

(b)

IR 24

(c)

Atomita 2

(d)

Ponni

We can cut the DNA with the help of

(a)

scissors

(b)

restriction endonucleases

(c)

knife

(d)

RNAase

DNA fingerprinting is based on the principle of identifying _______ sequences of DNA

(a)

single stranded

(b)

mutated

(c)

polymorphic

(d)

repetitive

In a hexaploid wheat( 2n = 6 x = 42 ) the haploid (n) and the basic(x) number of chromosomes respectively are

(a)

n = 7 and x = 21

(b)

n = 21 and x = 21

(c)

n = 7 and x = 7

(d)

n = 21 and x = 7