Biomolecules (Zoology)
- One of the similarities between DNA and RNA is that both
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DNA and RNA are both polymers of nucleotides. DNA has deoxyribose sugar while RNA has ribose sugar. DNA has thymine while RNA has uracil in place of thymine.
Correct Option: A
DNA and RNA are both polymers of nucleotides. DNA has deoxyribose sugar while RNA has ribose sugar. DNA has thymine while RNA has uracil in place of thymine.
- DNA synthesis can be specifically measured by estimating the incorporation of radio labelled
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Thymidine is used to assess the rate of DNA synthesis, since thymine is unique to DNA.
Correct Option: C
Thymidine is used to assess the rate of DNA synthesis, since thymine is unique to DNA.
- The nitrogenous organic base purine occuring in RNA is
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The nitrogenous bases forming the nucleoside in RNA are adenine, guanine (purines) and cytosine and uracil (pyrimidines).
Correct Option: C
The nitrogenous bases forming the nucleoside in RNA are adenine, guanine (purines) and cytosine and uracil (pyrimidines).
- Two free ribonucleotide units are interlinked with
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In a phosphodiester bond, linkage takes place between the phosphate group of one nucleotide and the hydroxyl group of sugar (ribose or deoxyribose) of the adjacent nucleotide.
Correct Option: D
In a phosphodiester bond, linkage takes place between the phosphate group of one nucleotide and the hydroxyl group of sugar (ribose or deoxyribose) of the adjacent nucleotide.
- Which one contains four pyrimidine bases?
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The pyrimidine bases include cytosine, thymine and uracil.
Correct Option: A
The pyrimidine bases include cytosine, thymine and uracil .
