HARD
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Earn 100
Read the following statements and select the correct option.
(i) Loosely packed and lightly stained region of chromatin are called as heterochromatin.
(ii) Densely packed and dark stained region of chromatin are called as euchromatin.
(iii) A typical nucleosome contains of DNA helix.
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Important Questions on Molecular Basis of Inheritance
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Find out the wrong statement about heterochromatin.
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The year was celebrated as the anniversary of the discovery of
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The process of transformation is not affected by which of the following enzymes?
DNase
RNase
Peptidase
Lipase
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To prove that DNA is the genetic material, which radioactive isotopes were used by Hershey and Chase in their experiments?
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If the DNA of a virus is labelled with and the protein of the virus is labelled with , after transduction which molecule(s) would be present inside the bacterial cells?
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RNA is the genetic material in
MEDIUM
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Which of the following criteria should be fulfilled by a molecule to act as genetic material?
(i) It should be able to replicate.
(ii) It should be structurally and chemically stable.
(iii) It should be able to undergo slow mutations.
(iv) It should be able to express itself in the form of 'Mendelian characters'.
MEDIUM
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Select the correct statements out of the following.
(i) Both DNA and RNA are able to mutate.
(ii) RNA being unstable, mutates at a faster rate.
(iii) RNA shows catalytic properties.
(iv) Presence of uracil (U) at place of thymine (T) confers additional stability to RNA.
