Which antibiotic inhibits the interaction between t-RNA and m-RNA using bacterial protein synthesis?
1. Erythromycin
2. Neomycin
3. Streptomycin
4. Tetracycline
One gene – one enzyme hypothesis was postulated by:
1. R. Franklin
2. Hershey and Chase
3. A. Garrod
4. Beadle and Tatum
Protein synthesis in an animal cell occurs:
| 1. | On ribosomes present in cytoplasm as well as in mitochondria |
| 2. | On ribosomes present in the nucleolus as well as in the cytoplasm |
| 3. | Only on ribosomes attached to the nuclear envelope and endoplasmic reticulum |
| 4. | Only on the ribosomes present in the cytosol |
A sequence of how many nucleotides in messenger RNA make a codon for an amino acid:
1. Four
2. One
3. Two
4. Three
Which form of RNA has a structure resembling clover leaf?
1. hn-RNA
2. m-RNA
3. t-RNA
4. r-RNA
Anticodon occurs in:
1. t-RNA
2. m-RNA
3. rRNA
4. DNA
In a three-dimensional view, the molecule of t-RNA is:
| 1. | L-shaped | 2. | S-shaped |
| 3. | Y-shaped | 4. | E-shaped |
Variations in proteins are due to:
1. Sequence of amino acids
2. Number of amino acids
3. R–group
4. None