1631. What are chromosomes?

A. Only found in a cell’s nucleus;
B. Human cells have most of them;
C. Mainly composed of DNA*
D. None of these

1632. Who among thee was produced by genetics engineering?

A. Rahu-Thaila carp *
B. Dahbi Ox
C. Nancy sheep
D. None of these

1633. The first gene synthesis in the laboratory was carried out by:

A. Hargobind khorana*
B. Gregor Mendel
C. Watson and crick
D. Paul berg

1634. Which of the following is not a characteristic of eukaryotic DNA transcription?

A. Multiple RNA polymerases
B. TATA- binding protein
C. Strict promoter sequences *
D. Transcription factors

1635. Which of the following condons cannot be recognized by a tRNA molecule?

A. UAA *
B. CGA
C. UUU
D. AUG

1636. What is the rate of DNA translation?

A. 80 nucleotides per second
B. 90 nucleotides per second
C. 60 nucleotides per second *
D. 40 nucleotides per second

1637. Which Indian scientist created the artificial gene?

A. Hargobind Khorana *
B. J.J. Thompson
C. Benjamin Franklin
D. Meghnad Saha

1638. The human cell contains :

A. 44 chromosomes
B. 48 Chromosomes
C. 46 Chromosomes *
D. 23 Chromosomes

1639. Chromosomes are :

A. Only found in a cell’s nucleus;
B. Human cells have most of them;
C. Mainly made of DNA;
D. Always visible in every cell *

1640. Which of the following is not a common hydrogen bond acceptor?

A. A carbonyl
B. Primary amine *
C. Hydroxyl
D. Tertiary amine