Home
Class 12
BIOLOGY
Which of the followi11g radioactive isot...

Which of the followi11g radioactive isotopes were utilised for labelling protein and DNA in transduction experiment respectively?

A

`""^(32)P, ""^(35)P`

B

`""^(53)S, ""^(35)P`

C

`""^(35)S, ""^(32)P`

D

`""^(32)S, ""^(35)P`

Text Solution

AI Generated Solution

The correct Answer is:
To answer the question regarding which radioactive isotopes were utilized for labeling protein and DNA in the transduction experiment, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Context**: The question refers to the Hershey and Chase experiment, which was pivotal in demonstrating that DNA is the genetic material. 2. **Identify the Components**: In the experiment, two components were labeled: DNA and proteins. We need to determine which isotopes were used for each. 3. **Recall the Composition**: - **DNA** contains phosphorus but does not contain sulfur. - **Proteins** contain sulfur but do not contain phosphorus. 4. **Identify the Isotopes**: - The radioactive isotope used for labeling DNA (which contains phosphorus) is **Phosphorus-32 (P-32)**. - The radioactive isotope used for labeling proteins (which contain sulfur) is **Sulfur-35 (S-35)**. 5. **Conclusion**: Therefore, the correct pairing of radioactive isotopes used in the Hershey and Chase experiment for labeling DNA and proteins is: - DNA: Phosphorus-32 (P-32) - Proteins: Sulfur-35 (S-35) 6. **Final Answer**: The correct option is **Phosphorus-32 and Sulfur-35**.
Promotional Banner

Topper's Solved these Questions

  • MOLECULAR BASIS OF INHERITANCE

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION -B) Objective Type Questions|36 Videos

  • MOLECULAR BASIS OF INHERITANCE

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION -C) Previous Years Questions|139 Videos

  • MOLECULAR BASIS OF INHERITANCE

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|60 Videos

  • MOCK_TEST_20

    AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|31 Videos

  • MORPHOLOGY OF FLOWERING PLANTS

    AAKASH INSTITUTE ENGLISH|Exercise TRY YOURSELF|38 Videos

Similar Questions

Explore conceptually related problems

Which of the following isotopes were used in the Hershey-Chase experiments ?

Which of the following statements are false regarding 'Hershey and Chase' experiment, proving DNA is genetic material ? (i) They made use of rats. (ii) Radioactivity was seen in supernatant for the medium that was infected by phase radiolabelled with .^(32)P . (iii) Used radioisotope to label sulphur with .^(35)S in sulphur- containing amino acids. (iv) Radioactive phages were allowed to attach to E. coli bacteria.

To prove that DNA is the genetic material, which radioactive isotopes were used by Hershey and Chase (1952) in their experiments?

Radioactive element used to label DNA of bacteriophage in Wareing-blender experiment of Hershey and Chase was :-

The decay constant of a radioactive isotope is lambda . If A_1 and A_2 are its activites at time t_1 and t_2 respectively, then the number of nuclei which have decayed the time (t_1-t_2)

which of the following statement is correct ? A. Single cell protein is rich in high quality proteins bit poor in fat B. BOD is the amount of oxygen that would be consumed if all the inroganic matter in one litre of water were oxidised by bacteria . C. Trichoderma sp are free living fungi that are effictive biocontrol agents of several pathogens. D. Bacillus thuingiensis are pathogens that attack insects and other arthrpods . E. Bacillus thuringiensis is first used biopesticide. F. Lactose enzyme is used in alcoholic fermentation . G. Mycorrhiza is a symbiotic associtation between fungi e.g. Glomus and vascular plant .

Three water samples namely river water, untreated sewage water and secondary effluent discharge from a sewage treatment plant were subjected to BOD test. The samples were labelled A,B and C. but the laboratory attened did not note, which was which . The BOD values of the three samples A,B and C were recorded as 20 mg/L , 8 mg/L and 400 mg/L, respectively. which sample of the water is most polluted ? can you assign the correct label to each , assuming the river water is relatively clean