Which one of the following makes use of RNA as a template to synthesize DNA:

1. DNA dependant RNA polymerase

2. DNA polymerase

3. Reverse transcriptase

4. RNA polymerase

Protein synthesis in an animal cell occurs:
 

Production of a human protein in bacteria by genetic engineering is possible because:

During transcription holoenzyme RNA polymerase binds to a DNA sequence and the DNA assumes a saddle like structure at the point. What is the sequence called -

1. CAAT box

2. GGTT box

3. AAAT box

4. TATA box

A cup has ${10}^5$ bacterial cells. Each bacterial cell divides in 35 minutes. What shall be the number of bacteria after 175 min?

Which of the following exercises control over transcription:
1.  Operator
2.  Regulator
3.  Promoter
4.  Recon

Transduction in bacteria is carried out by:
1.  Bacteriophage
2.  B.G.A.
3.  Mycoplasma
4.  Rickettsiae

Variations in proteins are due to:
1.  Sequence of amino acids
2.  Number of amino acids
3.  R–group
4.  None

Segments of DNA which can move in a genome:
1.  Transposons
2.  Introns
3.  Exons
4.  Cistrons

A sequence of how many nucleotides in messenger RNA make a codon for an amino acid:

1. Four

2. One

3. Two

4. Three