Which of the following rRNA acts as structural RNA as well as ribozyme in bacteria?
1. | 5S rRNA |
2. | 18S rRNA |
3. | 23S rRNA |
4. | 5.8S rRNA |
The final proof for DNA as the genetic material came from the experiments of:
1. Hershey and chase
2. Avery, McLeod and McCarty
3. Har Gobind Khorana
4. Griffith
If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
1. 11
2. 33
3. 333
4. 1
AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA?
1. | AGGUAUCGCAU | 2. | UGGTUTCGCAT |
3. | ACCUAUGCGAU | 4. | UCCAUAGCGUA |
During DNA replication, Okazaki fragments are used to elongate:
1. | The lagging strand towards the replication fork. |
2. | The leading strand away from the replication fork. |
3. | The lagging strand away from the replication fork. |
4. | The leading strand towards the replication fork. |
Which of the following RNA should be most abundant in an animal cell?
1. | t-RNA |
2. | m-RNA |
3. | mi-RNA |
4. | r-RNA |
A molecule that can act as a genetic material must fulfill the traits given below, except:
1. | it should be able to express itself in the form of 'Mendelian characters' |
2. | it should be able to generate its replica |
3. | it should be unstable structurally and chemically |
4. | it should provide the scope for slow changes that are required for evolution |
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 |
DNA replication in bacteria occurs:
1. Within nucleolus
2. Prior to fission
3. Just before transcription
4. During S phase