The equivalent of a structural gene is:
1. | muton | 2. | cistron |
3. | operon | 4. | recon |
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 |
DNA-dependent RNA polymerase catalyses transcription on one strand of the DNA which is called the?
1. | template strand | 2. | coding strand |
3. | alpha strand | 4. | anti strand |
Which one of the following is not part of a transcription unit in DNA?
1. The inducer
2. A Terminator
3. A promoter
4. The structural gene
Statement I: | In eukaryotes, there are three RNA polymerases in the nucleus in addition to the RNA polymerase found in the organelle. |
Statement II: | All the three RNA polymerases in eukaryotic nucleus have different roles. |
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
I: | The process of copying genetic information from one strand of the DNA into RNA is termed as transcription |
II: | A transcription unit in DNA is defined primarily by the three regions in the DNA i.e. a promoter, the structural gene and a terminator. |
Removal of introns and joining of exons in a defined order during transcription is called:
1. Looping
2. Inducing
3. Slicing
4. Splicing
Which of the following RNAs is not required for the synthesis of protein?
1. rRNA
2. siRNA
3. mRNA
4. tRNA
Assertion (A): | It is necessary to define the boundaries that would demarcate the region and the strand of DNA that would be transcribed. |
Reason (R): | Unlike replication, the principle of complementarity does not govern the process of transcription. |
1. | Both (A) and (R) are True and (R) correctly explains (A). |
2. | (A) is True but (R) is False. |
3. | Both (A) and (R) are True but (R) does not correctly explain (A). |
4. | (A) is False but (R) is True. |