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

1.	Bacterial cells can carry out the RNA splicing reactions
2.	The mechanism of gene regulation is identical in humans and bacteria
3.	The human chromosome can replicate in bacterial cell
4.	The genetic code is universal

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

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

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

1. Four

2. One

3. Two

4. Three

DNA fingerprinting refers to:

During transcription, if the nucleotide sequence of the DNA strand that is being coded is ATACG, then the nucleotide sequence in the mRNA would be:

1. TCTGG

2. UAUGC

3. UATGC

4. TATGC

Number of base pairs in human chromosomes are:

1. $3 \times {10}^9$

2. $3 \times {10}^7$

3. $6 \times {10}^8$

4. $6 \times {10}^7$

The following ratio is generally constant for a given species:

Initiation codon in eukaryotes is:
1.  UGA
2.  CCA
3.  AGA
4.  AUG

During the replication of bacterial chromosomes, DNA synthesis starts from a replication origin site and:

1. Is facilitated by telomerase

2. Moves in one direction of the size

3. Moves in a bi-directional way

4. RNA primers are involved