Q. No.Which one of the following is wrongly matched?
| 1. | Transcription- Writing information from DNA to t-RNA |
| 2. | Translation- Using the information in m-RNA to make protein |
| 3. | Repressor protein- Binds to an operator to stop enzyme synthesis |
| 4. | Operon- Structural genes, operator, and promoter |
Select the correct option:
| Direction of RNA synthesis |
Direction of reading of the template DNA strand |
|
| 1. | 5'-3' | 3' - 5' |
| 2. | 3'-5' | 5' - 3' |
| 3. | 5' - 3' | 5' - 3' |
| 4. | 3' - 5' | 3' - 5' |
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 4 |
Removal of RNA polymerase III from nucleoplasm will affect the synthesis of:
1. tRNA
2. hnRNA
3. mRNA
4. rRNA
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
If one strand of DNA has the nitrogenous base sequence as ATCTG, what would be the complementary RNA strand sequence?
1. TTAGU
2. UAGAC
3. AACTG
4. ATCGU
Removal of introns and joining of exons in a defined order during transcription is called:
1. Looping
2. Inducing
3. Slicing
4. Splicing
Read the following four statements (A-D):
| A. | In transcription, adenosine pairs with uracil |
| B. | Regulation of lac operon by a repressor is referred to as positive regulation |
| C. | The human genome has approximately 50,000 genes |
| D. | Haemophilia is a sex-linked recessive disease |
How many of the above statements are right?
1. Three
2. Four
3. One
4. Two
Which one of the following does not follow the central dogma of molecular biology?
1. Pea
2. Mucor
3. Chlamydomonas
4. HIV
In eukaryotic cell transcription, RNA splicing and RNA capping take place inside the:
1. Nucleus
2. Dictyosomes
3. ER
4. Ribosomes
Molecular basis of organ differentiation depends on the modulation in transcription by:
1. RNA polymerase
2. ribosome
3. transcription factor
4. anticodon
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