Jumping genes given by Barbara Mclintock are also called

1

(a)

Transposons

(b)

Mutons

(c)

Cistrons

(d)

Vectors

Nitrogenous base sequence in one strand of DNA is ATGCTTGA, the sequence in the complementary strand will be

1

(a)

TAGGTAGT

(b)

TACGAACT

(c)

TACGTACT

(d)

TCCGAACT

Temin and Baltimore are associated with the discovery of

1

(a)

RNA synthesis

(b)

Transcription

(c)

Reverse transcription

(d)

photorespiration

How many codons code for amino acids?

1

(a)

64

(b)

61

(c)

68

(d)

60

Nucleoside is

1

(a)

Nitrogenous base + Sugar

(b)

Nitrogenous base + sugar + phospate

(c)

Sugar + phosphate

(d)

Nitrogenous base + phosphate

Which of the two subunits of ribosome encounters an mRNA?

1

(a)

Small subunit

How is a nucleotide different from a nuclioside different from a nucleoside?

1

(a)

A nucliotide has a phosphate along with the pentose sugar and nitrogenous base; a nucleoside has only the pentose sugar and nitrogenous base.

How are the consecutive nucleotides linked together in a polynucleotide strands?

1

(a)

Consecutive nucleotides are attached through 3'-5' phosphodiester linkage.