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

After a mutation at a genetic locus, the character of an organism changes due to the change in:

1. DNA replication

2. Protein synthesis pattern

3. RNA transcription pattern

4. Protein structure