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
Which of the following reunites the exon segments after RNA splicing:
1. RNA polymerase
2. RNA primase
3. RNA ligase
4. RNA proteases
The nucleus of a donor embryonal cell/somatic cell is transferred to an enucleated egg cell. Then after the formation of the organism, what shall be true:
| 1. | Organism will have extranuclear genes of the donor cell |
| 2. | Organism will have extranuclear genes from the recipient cell |
| 3. | Organism will have extranuclear genes of both donor and recipient cell |
| 4. | Organism will have nuclear genes of the recipient cell |
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
Living beings maintain continuity of life by:
| 1. | Adaptation |
| 2. | DNA–replication and its transfer in the next generation |
| 3. | RNA synthesis |
| 4. | None of the above |
Which of the following is correct about H-bonding in nucleotide:
1. A–T G–C
2. A–G T–C
3. G–T A–C
4. A–A T–T
Chargaff's rule states that in an organism:
| 1. | The amount of adenine (A) is equal to that of thymine (T) and the amount of guanine (G) is equal to that of cytosine (C). |
| 2. | The amount of adenine (A) is equal to that of guanine (G) and the amount of thymine (T) is equal to that of cytosine (C). |
| 3. | The amount of adenine (A) is equal to that of cytosine (C) and the amount of thymine (T) is equal to that of guanine (G). |
| 4. | Amounts of all bases are equal. |
During translation initiation in prokaryotes, a GTP molecule is needed in:
| 1. | Formation of formyl-met-tRNA |
| 2. | Binding of 30S subunit of the ribosome with mRNA |
| 3. | Association of 30 S-mRNA with formyl met-tRNA |
| 4. | Association of 50 S subunit of the ribosome with the initiation complex |
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