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You are repeating the Hershey-Chase expe...

You are repeating the Hershey-Chase experiment and are provided with two isotopes: 32P and 15N (in place of 35S in the original experiment). How do you expect your results to be different?

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### Step-by-Step Solution: 1. **Understanding the Original Hershey-Chase Experiment**: - The Hershey-Chase experiment was designed to determine whether DNA or protein is the genetic material in bacteriophages (viruses that infect bacteria). - They used two isotopes: 32P, which labels DNA (since DNA contains phosphate), and 35S, which labels proteins (since proteins contain sulfur). 2. **Role of Isotopes**: - In the original experiment, 32P was incorporated into the DNA of the bacteriophage, while 35S was incorporated into the protein coat. ...
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You are repeating the Hershey-Chase experiment and are provided with two isotopes .^(32)Pand .^(15)N (in place of .^(35)S in the original experiment ). How does yoe expect your results to be differnet?

You are repeating the Hershey-Chase experiment and are provided with two isotopes .^(32)Pand .^(15)N (in place of .^(35)S in the original experiment ). How does yoe expect your results to be differnet?

Give an account of Hershey and Chase experiment. What did it conclusively prove? If both DNA and proteins contained phosphors and Sulphur do you think the result would have been the same?

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.

(a) Why do we classify elements ? (b) What were the two criteria used by Mendeleev in creating his Periodic Table ? (c ) Why did Mendeleev leave some gaps in his Periodic Table? (d) In Mendeleev's Periodic Table, why was there no mention of Noble gases like Helium, Neon and Argon? (e ) Would you place the two isotopes of chlorine , Cl-35 and Cl-37 in different slots because of their different atomic masses or in the same slot because their chemical properties are the same ? Justify your answer.

mark any two points P\ a n d\ Q in your note book and draw a line passing through the points. How many lines can you draw passing through both the points?

Comprehension-1 Two closed identical conducting containers are found in the laboratory of an old scientist. For the vertification of the gas some experiments are performed on the two boxes and the results are noted. Experimenet 1. When the two containers are weighed W_(A) = 225tg, W_(B) = 160 g and mass of evacuated container W_(C) = 100g . Experiment 2. When the two containers are given same amount of heat same temperature rise is recorded. The pressure changes found are DeltaP_(A) = 2.5 atm, Deltap_(B) = 1.5 atm . Required data for unknown gas: |(underset("molar mass")(Mono)",He,Ne,Ar,Kr,Xe,Rd),(,4g,20g,40g,84g,131g,222g),(underset(molar mass)(Dia),H_(2),F_(2),N_(2),O_(2),CI_(2),),(,2g,19g,28g,32g,71g,)| Total number of molecules in 'A' (here N_(A) = Avagadro number)

Comprehension-1 Two closed identical conducting containers are found in the laboratory of an old scientist. For the vertification of the gas some experiments are performed on the two boxes and the results are noted. Experimenet 1. When the two containers are weighed W_(A) = 225tg, W_(B) = 160 g and mass of evacuated container W_(C) = 100g . Experiment 2. When the two containers are given same amount of heat same temperature rise is recorded. The pressure changes found are DeltaP_(A) = 2.5 atm, Deltap_(B) = 1.5 atm . Required data for unknown gas: |(underset("molar mass")(Mono)",He,Ne,Ar,Kr,Xe,Rd),(,4g,20g,40g,84g,131g,222g),(underset(molar mass)(Dia),H_(2),F_(2),N_(2),O_(2),CI_(2),),(,2g,19g,28g,32g,71g,)| Total number of molecules in 'A' (here N_(A) = Avagadro number)

Comprehension-1 Two closed identical conducting containers are found in the laboratory of an old scientist. For the vertification of the gas some experiments are performed on the two boxes and the results are noted. Experimenet 1. When the two containers are weighed W_(A) = 225tg, W_(B) = 160 g and mass of evacuated container W_(C) = 100g . Experiment 2. When the two containers are given same amount of heat same temperature rise is recorded. The pressure changes found are DeltaP_(A) = 2.5 atm, Deltap_(B) = 1.5 atm . Required data for unknown gas: |(underset("molar mass")(Mono)",He,Ne,Ar,Kr,Xe,Rd),(,4g,20g,40g,84g,131g,222g),(underset(molar mass)(Dia),H_(2),F_(2),N_(2),O_(2),CI_(2),),(,2g,19g,28g,32g,71g,)| Identify the gas filled in the container A and B .

What are the oxidation number of the underlined elements in each of the following and how do you rationalise your results? H_(2)ul(S)_(4)O_(6)

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