HARD
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Who was the first archaeologist to excavate the Harappan civilization site at Harappa?

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Important Questions on Atoms

EASY
The final proof for DNA as the genetic material came from the experiments of
MEDIUM
Darwin's theory is based on
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Write the names of the following :

A 15 mya primate that was ape-like.

MEDIUM
The brain capacities of which man were between 650-800 cc in course of human evolution?
EASY
The ratio of mass densities of nuclei of  40Ca and 16O is close to:
HARD

According to the Darwinian theory of natural selection, the rate of appearance of new forms is linked to the life cycle or the life span of an organism. Explain with the help of an example.

EASY

Write the names of the following:

A 2 mya primate that lived in East African grasslands.

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State the ‘Central dogma’ as proposed by Francis Crick. Are there any exceptions to it? Support your answer with a reason and an example.
MEDIUM
A molecule that can act as a genetic material must fulfill the traits given below, except
MEDIUM
The nuclear radius of Al1327 is 3.6 fermi. Find the nuclear radius of Cu2964.
MEDIUM
Describe the experiment carries out by Hershey and Chase. Write the conclusion they arrived at.
HARD
Explain how the biochemical characterisation (nature) of ‘Transforming Principle’ was determined, which was not defined from Griffith’s experiments.
EASY
In Hershey and Chase experiments, radioactive 32P was used to culture bacteriophages which resulted in radioactive:
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In the bacteriophage experiments, Hershey and Chase demonstrated that DNA is the genetic material in
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The bacterium used in Griffith's experiment was
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List the criteria that a molecule which can act as genetic material must fulfil. Which one of the criteria is best fulfilled by DNA and by RNA thus, making one of them a better genetic material than the other? Explain.
EASY
The fact that DNA is a genetic material was established by the experiment of:
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How did Hershey and Chase differentiate between DNA and protein in their experiment while proving that DNA is the genetic material?

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Describe the series of experiments by F. Griffith. Comment on the significance of the results obtained.