- 1(current)
Q. No.Read the following four statements (A-D):
| A. | In transcription, adenosine pairs with uracil |
| B. | Regulation of lac operon by a repressor is referred to as positive regulation |
| C. | The human genome has approximately 50,000 genes |
| D. | Haemophilia is a sex-linked recessive disease |
How many of the above statements are right?
1. Three
2. Four
3. One
4. Two
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
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In E.coli, the lac operon gets switched on when:
1. lactose is present and it binds to the repressor
2. repressor binds to operator
3. RNA polymerase binds to the operator
4. lactose is present and it binds to RNA polymerase
- 1(current)
Q. No.
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