Activation of amino acids during translation is done by 
1. Peptidyl transferase 
2. Aminoacyl-tRNA synthetase
3. Methionine 
4. Initiation factors
 

Subtopic:  Translation |
 86%
Please attempt this question first.
Hints

Movement of ribosome on mRNA is called 
1. Transcription 
2. Translation
3. Translocation
4. Protein synthesis 
Subtopic:  Translation |
 59%
Please attempt this question first.
Hints

The elongation factors required  for prokaryotes are 
1. \(\text { EF-Tu and EF-Ts }\)
2. eEF1
3. elF2
4. eEF2
Subtopic:  Translation |
 57%
Please attempt this question first.
Hints

advertisementadvertisement

The mechanism by which a gene is able to express itself in the phenotype of an organism is called
1. Gene expression 
2. RNA synthesis 
3. Translocation 
4. Formylation
Subtopic:  Translation |
 85%
Please attempt this question first.
Hints

The genes which are constantly expressing themselves in cell are called 
1. Luxury genes
2. constitutive genes
3. Non-constitutive genes
4. Both (1) & (3)
Subtopic:  Translation |
 68%
Please attempt this question first.
Hints

How many structural genes are present in lac-operon of E. coli
1. 4
2. 3
3. 2 
4. 1
Subtopic:  Gene Regulation: Lac Operon |
 80%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

In lac-operon, \(\beta\)-galactosidase enzyme is made by 
1. lac-y
2. lac-a
3. lac-z
4. lac-i
 
Subtopic:  Gene Regulation: Lac Operon |
 91%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Inducer molecule in lac-operon of E. coli is chemically a/an 
1. Disaccharide
2. Amino acid 
3. Protein 
4. RNA
Subtopic:  Gene Regulation: Lac Operon |
 75%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Select incorrectly matched pair
1.  Lac z  - Constitutive gene
2. Operator gene   - Smallest gene of lac operon 
3. Lac a  - Transacetylase
4. Promoter gene  - RNA polymerase
Subtopic:  Gene Regulation: Lac Operon |
 64%
Please attempt this question first.
Hints

advertisementadvertisement

During DNA fingerprinting, separation of DNA fragments is done by 
1. Autoradiography
2. Hybridisation 
3. Denaturation
4. Electrophoresis
Subtopic:  DNA Fingerprinting |
 81%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.