Q. No.Which one of the following statements about Histones is wrong?
1.
Histones are rich in amino acids - Lysine and Arginine.
2.
Histones carry a positive charge in the side chain.
3.
Histones are organized to form a unit of 8 molecules
4.
Histones are organized to form a unit of 10 molecules
| Statement I: | The codon AUG' codes for methionine and phenylalanine. |
| Statement II: | AAA' and 'AAG are both codons that code for the amino acid lysine. |
In light of the above statements, choose the correct answer from the options given below:
| 1. | Statement I is correct but Statement II is false. |
| 2. | Statement I is incorrect but Statement II is true. |
| 3. | Both Statement I and Statement II are true. |
| 4. | Both Statement I and Statement II are false. |
Which is the "Only enzyme" that has the "Capability" to catalyze Initiation, Elongation, and Termination in the process of transcription in prokaryotes?
1. DNA Ligase
2. DNase
3. DNA-dependent DNA polymerase
4. DNA-dependent RNA polymerase
Which of the following RNAs is not required for the synthesis of protein?
1. rRNA
2. siRNA
3. mRNA
4. tRNA
If Adenine makes 30% of the DNA molecule, what will be the percentage of Thymine, Guanine and Cytosine in it?
| 1. | T:30 ; G:20 ; C:20 | 2. | T:20 ; G:25 ; C:25 |
| 3. | T:20 ; G:30 ; C:20 | 4. | T:20 ; G:20 ; C:30 |
Identify the correct statement:
| 1. | The coding strand in a transcription unit is copied to an mRNA. |
| 2. | Split gene arrangement is characteristic of prokaryotes. |
| 3. | In capping, methylguanosine triphosphate is added to the 3' end of hnRNA. |
| 4. | RNA polymerase binds with the Rho factor to terminate the process of transcription in bacteria. |
DNA fingerprinting involves identifying differences in some specific regions in DNA sequence called:
| 1. | Single nucleotides | 2. | Polymorphic DNA |
| 3. | Satellite DNA | 4. | Repetitive DNA |
Complete the flow chart on central dogma
| 1. | (a) - Replication; (b) - Transcription; (c) - Translation; (d) - Protein |
| 2. | (a) - Transduction; (b) - Translation; (c) - Replication; (d) - Protein |
| 3. | (a) - Replication; (b) - Transcription; (c) - Transduction; (d) - Protein |
| 4. | (a) - Transcription; (b) - Replication; (c) - Transcription; (d) - Transduction |
Which is the basis of genetic mapping of the human genome as well as DNA fingerprinting?
1. Polymorphism in the DNA sequence
2. Single nucleotide polymorphism
3. Polymorphism in the hnRNA sequence
4. Polymorphism in the RNA sequence
E.coli has only 4.6 × base pairs and completes the process of replication within 18 minutes, then the average rate of polymerization is approximately:
| 1. | 2000 base pairs/second | 2. | 3000 base pairs/second |
| 3. | 4000 base pairs/second | 4. | 1000 base pairs/second |
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