What initiation and termination factors are involved in transcription in prokaryotes?

1. $\mathrm{\sigma }$ $\mathrm{and}$ $\mathrm{\rho }$, respectively

2. $\mathrm{\alpha }$ $\mathrm{and}$ $\mathrm{\beta }$, respectively

3. $\mathrm{\beta }$ $\mathrm{and}$ $\mathrm{\gamma }$, respectively

4. $\mathrm{\alpha }$ $\mathrm{and}$ $\mathrm{\sigma }$, respectively

In the process of transcription in Eukaryotes, the RNA polymerase I transcribe -

1. mRNA with additional processing, capping and tailing

2. tRNA, 5 S rRNA and snRNAs

3. rRNAs - 28 S, 18 S and 5.8 S

4. Precursor of mRNA, hnRNA

Which scientist experimentally proved that DNA is the sole genetic material in bacteriophage?

1. Beadle and Tatum

2. Messelson and Stahl

3. Hershey and Chase

4. Jacob and Monod

From the following, identify the correct combination of salient features of the Genetic Code:

Match the following RNA polymerases with their transcribed products:

Select the correct option from the following:

What will be the sequence of mRNA produced by the following stretch of DNA?

3' ATGCATGCATGCATG 5' TEMPLATE STRAND

5' TACGTACGTACGTAC 3' CODING STRAND

1. 3' AUGCAUGCAUGCAUG 5'

2. 5' UACGUACGUACGUAC 3'

3. 3' UACGUACGUACGUAC 5'

4. 5' AUGCAUGCAUGCAUG 3'

Production of human protein in bacterial genetic engineering is possible because           
1. Human chromosome replicate bacterial cell
2. Mechanism of gene regulation is identical in humans and bacteria
3. Bacterial cell can undertake RNA splicing
4. Genetic code is universal

A mutation at a gene locus changes a character due to change in
1. DNA replication
2. Protein synthesis pattern
3. RNA transcription pattern
4. Protein structure

Length of one turn of the helix in a B-form DNA is approximately 
1. 3.4 nm
2. 2 nm
3. 0.34 nm
4. 20 nm

The transfer RNA molecule in 3D appears 
1. L-shaped
2. E-shaped
3. V-shaped
4. S-shaped