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Read the following paragraph and answer the following question. Hershey-Chase experiment broke the barriers of science and expanded the understanding of life. In this experiment, two sets of bacteriophages are used in which one contains radioactive sulphur in its protein coat (Set-I) and other contains radioactive phosphorus in its DNA (Set-II). These two sets were allowed reproduce in E.Coli culture and then centrifuged. Which among the following are correct Set-I and Set-II after centrifugation?

Read the following paragraph and answer the following question. Hershey-Chase experiment broke the barriers of science and expanded the understanding of life. In this experiment, two sets of bacteriophages are used in which one contains radioactive sulphur in its protein coat (Set-I) and other contains radioactive phosphorus in its DNA (Set-II). These two sets were allowed reproduce in E.Coli culture and then centrifuged. Which among the following are correct Set-I and Set-II after centrifugation? Correct Answer Set-I contains radioactive sulphur in its pellet and set-II contains radioactive phosphorous in its supernatant

Set-I contains radioactive sulphur in its pellet and set-II contains radioactive phosphorous in its supernatant. This is because T2 bacteriophages replicates by injecting DNA into E.Coli whereas the protein coat remains outside E.Coli. This mixture when centrifuged forms sediment and pellet containing DNA and protein coat respectively.

Related Questions

Which of the following statements are true?
1. All radioactive elements decay exponentially with time.
2. Half-life time of radioactive elements is the time required for one-half of the radioactive atoms to disintegrate.
3. Age of the earth can be determined by radioactive dating.
4. Half-life time of a radioactive element is fifty percent of its average life period.
Select the correct answer:
A bacterial culture (200 μL containing 1.8 × 109 cells) was treated with an antibiotic Z (50 μg per mL) for 4 h at 37°C. After this treatment, the culture was divided into two equal aliquots.
Set A: 100 μL was plated on Luria agar.
Set B: 100 μL was centrifuged, the cell pellet washed and plated on Luria agar.
After incubating these two plates for 24 h at 37°C, Set A plate showed no colonies, whereas the Set B plate showed 0.9 × 109 cells. This experiment showed that the antibiotic Z is
What is the epithet commonly used to refer to the collector of antiquities and explorer who first set foot inside the tomb of Seti I in the Valley of the Kings and discovered Seti’s sarcophagus?
When the viruses are cultivated in the medium containing radioactive Sulphur, then these viruses possess radioactive DNA but not radioactive protein.
Ahar culture, Kayatha culture, Malwa culture, Savalda culture, Jorwa culture, Prabas culture, Rangpur culture are all parts of:
Ahar culture, Kayatha culture, Malwa culture, Savalda culture, Jorwe culture, Prabhas culture, Rangpur culture are all :
In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of thefour alternatives. The modes of action are _____ in science and religion. Science relies on experiment, whereas religion is based on experience. Any religious _____ whether it is Christs or Ramakrishnas is personal and _____ . Science, on the other hand is marked by objectivity. Theory has to be corroborated by _____ proof providing material comforts. The frontiers of science do not end in knowledge but are _____ to the formation of appliances for actual use. The modes of action are _____ in science and religion.
In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives. The modes of action are _____ in science and religion. Science relies on experiment, whereas religion is based on experience. Any religious _____ whether it is Christs or Ramakrishnas is personal and _____ . Science, on the other hand is marked by objectivity. Theory has to be corroborated by _____ proof providing material comforts. The frontiers of science do not end in knowledge but are _____ to the formation of appliances for actual use. The frontiers of science do not end in knowledge but are _____ to the formation of appliances for actual use.
In the question below, are given a statement followed by three courses of actions numbered I, II and III. On the basis of the information given, you have to assume everything in the statement to be true, and then decide which of the following suggested courses of actions logically follow(s) for pursuing. Statement: High-sulphur fuel oil (HSFO), essentially the leftovers of an oil refiner's output, will still flow from refineries around the world even after new rules start up in 2020 curtailing its use in the global shipping fleet.Sixty percent of the 33 refineries in a global survey will still produce HSFO in 2020 although the supply will tighten as 70 percent of these refiners plan to reduce their output.  Courses of action: I. Starting that year, ships will use marine fuel, which primarily consists of residual fuel oil, with a maximum sulphur content of 0.5 percent under International Maritime Organization (IMO) rules to reduce air pollution.  II. Currently, the global shipping fleet, which includes oil and chemical tankers as well as container ships, uses as much as 3.3 million barrels per day of HSFO with a maximum of 3.5 percent sulphur.  III. Refiners will have little incentive to produce HSFO after the regulations though some demand will remain as a small but growing number of vessels are fitted with smokestack scrubbers that remove the sulphur from the exhaust fumes and power plants will continue to consume the fuel. 
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