Q. No.A gene encoding for a polypeptide of 50 amino acids gets mutated at 25 codons UAU becoming UAA. The result would be:
1.
Polypeptide of 24 amino acid
2.
Two polypeptides one with 24 amino acids and the second with 25 amino acids
3.
A polypeptide with 49 amino acid
4.
A polypeptide of 25 amino acids
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
During transcription, RNA polymerase binds to DNA site
| 1. | Regulator | 2. | Promoter |
| 3. | Enhancer | 4. | Receptor. |
Degeneration of genetic code is due to
1. First member of codons
2. Second member of codons
3. Third member of codons
4. Entire codons.
In genetic code dictionary, codons used to code for all the 20 essential amino acids are
1. 20
2. 60
3. 61
4. 64
In gene mutation, adenine is replaced by guanine. It is
1. Frame-shift mutation
2. Transcription
3. Transition
4. Transversion
In bacterial DNA replication, synthesis starting from the site of origin of replication
1. Involves RNA primers
2. Requires telomerase
3. Proceeds unidirectionally
4. Moves bidirectionally
DNA fingerprinting is related to:
| 1. | Molecular analysis of profiles of DNA samples |
| 2. | Analysis of DNA samples using imprinting devices |
| 3. | Techniques used for molecular analysis of different specimens of DNA |
| 4. | Techniques used in the identification of fingerprints of different persons |
A nutritionally wild-type organism that does not require additional biochemicals is:
| 1. | Prototroph | 2. | Auxotroph |
| 3. | Phenotype | 4. | Autotroph |
On which organism Beadle and Tatum worked to propose one gene-one enzyme hypothesis
1. Drosophila
2. Escherichia coli
3. Neurospora crassa
4. Nostoc
© 2026 GoodEd Technologies Pvt. Ltd.