In general, bacterial genes are regulated at the time of:
1. Transcription
2. Post transcription
3. Translation
4. Post translation
Match the following column
|
Column I |
Column II |
|
I. Multigenes |
(i) transposons |
|
II. Inducible genes |
(ii) insulin |
|
III. Overlapping genes |
(iii) B, E and k in × 174 |
|
IV. Structural genes |
(iv) snRNA |
|
|
(v) globin gene |
|
|
(vi) nitrate reductase |
|
|
I |
II |
III |
IV |
|
(1) |
(i) |
(iii) |
(v) |
(ii) |
|
(2) |
(v) |
(vi) |
(iii) |
(ii) |
|
(3) |
(iv) |
(v) |
(vi) |
(i) |
|
(4) |
(i) |
(ii) |
(v) |
(vi) |
The conditions which regulate the expression of genes are
1. Environmental
2. Physiological
3. Metabolic
4. All of the above
Regulation of gene expression in prokaryotes predominantly takes place at
(1)transcriptional
(2)translational level
(3)splicing gene
(4)transportation of m-RNA from cytoplasm to mesosomes
In prokaryotes, gene regulation occurs at the level of:
(1) Transcription
(2) Translation
(3) Post transcription
(4) Post translation
Gene regulation in prokaryotes is carried out exclusively at the level of:
1. Initiation of transcription
2. Post transcriptional modifications
3. Translation
4. Post translational modifications
Reason(R): In the absence of lactose, the beta-galactosidase enzyme is synthesized by E. coli.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
1. UAG and UGA
2. UUU and GGG
3. GAG and GUG
4. AUG and UAC
1. Transcription initiation
2. Processing of hnRNA
3. Translational level
4. Post translational modification
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