Which of the following is not true statement?

(a)In translation, the transfer of genetic information from a polymer of nucleotides to a polymer of amino acids takes place.

(b)complementarity exist between nucleotide sequences and amino acids sequences.

(c)The basis for transcription and replication is complementarity.

(d) A change in nucleic acid is responsible for change in amino acid

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The proof for the triplet nature of codon was given by

(a)George Gamow

(b)Har Gobind Khorana

(c) Marshall Nirenberg’s

(d)Watson and Crick

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Which of the following enzyme can be used for the polymerisation of RNA in a template independent manner

(a)RNA Polymerase

(b)RNA primase

(c)polynucleotide phosphorylase

(d)RNA phosphatase

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codons are generated by 4 nitrogenous bases using laws of

(a)Probability

(b)Number system

(c)Permutation and combination

(d)Binomial theorem

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How many statements are correct?

    1. Codons are always triplet.
    2. there are total 64 codons code for amino acids.
    3. Codon is read in mRNA in non- contagious fashion.
    4. Code is nearly universal.
    5. Some amino acids are coded by more than one codon
    6. Codon is ambiguous

(A)5

(B)2

(C)3

(D)4

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Codon is

(a)unambiguous and non specific

(b)non degenerate

(c)unambiguous and degenerate

(d)non universal and non degenerate

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Which of the following is a stop codon

(a)UAA

(b)UAG

(c)UGA

(d)all of the above

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Which of the following is incorrect option

(a)A change of single base pair in the gene results in the change of amino acid in case sickle cell anemia

(b) In case sickle cell anemia charged amino acid is changed to non polar amino acid

(c)amino acid residue glutamine is changed to valine

(d)Sickle cell anemia is an example of point mutation

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The change in the reading frame will depend on

(A)no of bases deleted

(B)no of bases added

(C)no of bases deleted or added

(D)always change the reading frame either bases are deleted or added

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tRNA acts as

(a)adapter RNA

(b)structural RNA

(c)matured RNA

(d)messenger RNA

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