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