Q. No.Jacob and Monad studied lactose metabolism in E.Coli and proposed the Operon concept. The Operon concept is applicable to:
1. All prokaryotes
2. All prokaryotes and some eukaryotes
3. All prokaryotes and all eukaryotes
4. All prokaryotes and some protozoans
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.
The method of DNA replication in which two strands of DNA separate and synthesize new strands is called:
1. Dispersive
2. Conservative
3. Semiconservative
4. Non-conservative
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.
In the genetic code dictionary, how many codons are used to code for all the 20 essential amino acids:
1. 20
2. 64
3. 61
4. 60
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, if the nucleotide sequence of the DNA strand that is being coded is ATACG, then the nucleotide sequence in the mRNA would be:
1. TCTGG
2. UAUGC
3. UATGC
4. TATGC
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.
What is the role of RNA polymerase III in the process of transcription in eukaryotes?
1. Transcribes precursor of mRNA
2. Transcribes only snRNAs
3. Transcribes rRNAs (28S, 18S and 5.8S)
4. Transcribes tRNA, 5s rRNA and snRNA
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.
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 |
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.
In the history of biology, the human genome project led to the development of:
1. Biosystematics
2. Biotechnology
3. Biomonitoring
4. Bioinformatics
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.
Which one of the following statements about the particular entity is true:
| 1. | The gene for producing insulin is present in every body cell |
| 2. | Nucleosome is formed of nucleotides |
| 3. | DNA consists of a core of eight histones |
| 4. | Centromere is found in animals cells, which produces aster during cell division |
Which one of the following is a wrong statement regarding mutations?
| 1. | Cancer cells commonly show chromosomal aberrations |
| 2. | UV and Gamma rays are mutagens |
| 3. | Change in a single base pair of DNA does not cause mutation |
| 4. | Deletion and insertion of base pairs cause frame-shift mutations |
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.
What is it that forms the basis of DNA Fingerprinting?
| 1. | The relative difference in the DNA occurrence in blood, skin and saliva |
| 2. | The relative amount of DNA in the ridges and grooves of the fingerprints |
| 3. | Satellite DNA occurs as highly repeated short DNA segments |
| 4. | The relative proportions of purines and pyrimidines in DNA |
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.
© 2024 GoodEd Technologies Pvt. Ltd.