Match the following columns:
Column-$I$ Column-$II$
$(a)$ Exon $(I)$ Non-coding sequence
$(b)$ Intron $(II)$ Coding sequence
$(c)$ Genetic code $(III)$ Nucleosome
$(d)$ $DNA$ packaging $(IV)$ Nirenberg,Khorana and Matthaei

  • A
    $a-II, b-I, c-IV, d-III$
  • B
    $a-III, b-I, c-II, d-IV$
  • C
    $a-II, b-I, c-III, d-IV$
  • D
    $a-I, b-II, c-III, d-IV$

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Match the following columns correctly.
Column $I$Column $II$
$(a)$ $m-RNA$$(i)$ Found in ribosomes
$(b)$ $t-RNA$$(ii)$ Carries information from $DNA$ to the cytoplasm for protein synthesis
$(c)$ $r-RNA$$(iii)$ Contains $75$ nucleotides
$(d)$ $RNA$$(iv)$ $A$ polynucleotide chain containing ribose sugar and uracil base,existing in three types

Distinguish between: $m-RNA$ and $t-RNA$.

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