Q. No.Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology?
1. Genetic code is specific
2. Genetic code is not ambiguous
3. Genetic code is redundant
4. Genetic code is nearly universal
Expressed Sequence Tags (ESTs) refers to:
| 1. | Novel DNA sequence | 2. | Genes expressed as RNA |
| 3. | Polypeptide expression | 4. | DNA polymorphism |
Under which of the following conditions will there be no change in the reading frame of the following mRNA?
5'AACAGCGGUGCUAUU 3'
| 1. | Deletion of GGU from 7th, 8th and 9th positions |
| 2. | Insertion of G at the 5th position |
| 3. | Deletion of G from the 5th position |
| 4. | Insertion of A and G at the 4th and the 5th positions respectively |
Purines found both in DNA and RNA are:
| 1. | Cytosine and thymine | 2. | Adenine and thymine |
| 3. | Adenine and guanine | 4. | Guanine and cytosine |
Match the following genes of the lac operon with their respective products:
| (a) | i gene | (i) | -galactosidase |
| (b) | Z gene | (ii) | Permease |
| (c) | A gene | (iii) | Repressor |
| (d) | Y gene | (iv) | transacetylase |
Select the correct option
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (i) | (iii) | (ii) | (iv) |
| 3. | (iii) | (i) | (ii) | (iv) |
| 4. | (iii) | (i) | (iv) | (ii) |
What will be the sequence of mRNA produced by the following stretch of DNA?
3' ATGCATGCATGCATG 5' TEMPLATE STRAND
5' TACGTACGTACGTAC 3' CODING STRAND
1. 3' AUGCAUGCAUGCAUG 5'
2. 5' UACGUACGUACGUAC 3'
3. 3' UACGUACGUACGUAC 5'
4. 5' AUGCAUGCAUGCAUG 3'
Match the following RNA polymerases with their transcribed products:
|
Column-I |
Column-II |
||
|
(a) |
RNA polymerase I |
(i) |
tRNA |
|
(b) |
RNA polymerase II |
(ii) |
rRNA |
|
(c) |
RNA polymerase III |
(iii) |
hnRNA |
Select the correct option from the following:
| Options: | (a) | (b) | (c) |
| 1. | i | iii | ii |
| 2. | i | ii | iii |
| 3. | ii | iii | i |
| 4. | iii | ii | i |
From the following, identify the correct combination of salient features of the Genetic Code:
| 1. | Universal, Non-ambiguous, Overlapping |
| 2. | Degenerate, Overlapping, Commaless |
| 3. | Universal, Ambiguous, Degenerate |
| 4. | Degenerate, Non-overlapping, Non-ambiguous |
Which scientist experimentally proved that DNA is the sole genetic material in bacteriophage?
1. Beadle and Tatum
2. Messelson and Stahl
3. Hershey and Chase
4. Jacob and Monod
In the process of transcription in Eukaryotes, the RNA polymerase I transcribe -
1. mRNA with additional processing, capping and tailing
2. tRNA, 5 S rRNA and snRNAs
3. rRNAs - 28 S, 18 S and 5.8 S
4. Precursor of mRNA, hnRNA
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