Which one of the following statements is true regarding DNA polymerase used in PCR?

(a)

It is used to ligate introduced DNA in recipient cells

(b)

It serves as a selectable marker

(c)

It is isolated from a Virus

(d)

It remains active at a high temperature

ELISA is mainly used for

(a)

Detection of mutations

(b)

Detection of pathogens

(c)

Selecting animals having desired traits

(d)

Selecting plants having desired traits

Transgenic animals are those which have

(a)

Foreign DNA in some of their cells

(b)

Foreign DNA in all their cells

(c)

Foreign RNA in some of their cells

(d)

Foreign RNA in all their cells

Recombinant Factor VIII is produced in the ______ cells of the Chinese Hamster

(a)

Liver cells

(b)

blood cells

(c)

ovarian cells

(d)

brain cells.

Vaccines that use components of a pathogenic organism rather than the whole organism are called

(a)

Subunit recombinant vaccines

(b)

attenuated recombinant vaccines

(c)

DNA vaccines

(d)

conventional vaccines