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 bacterial cells. Each bacterial cell divides in 35 minutes. What shall be the number of bacteria after 175 min?
1. | \(2 \times 10 ^ 5\) | 2. | \(5 \times 10 ^ 5\) |
3. | \(32 \times 10 ^ 5\) | 4. | \(16 \times 10 ^ 5\) |
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
In transgenics expression of a transgene in the target tissue is determined by:
1. Transgene
2. Promoter
3. Reporter
4. Enhancer
DNA fingerprinting refers to:
1. | Analysis of DNA samples using imprinting devices |
2. | Techniques used for molecular analysis of different specimens of DNA |
3. | Techniques used for the identification of fingerprints of individuals |
4. | Molecular analysis of profiles of DNA samples |
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