Question

The differences between $mRNA$ and $tRNA$ are that (i) $mRNA$ has more elaborated $3$-dimensional structure due to extensive base-pairing (ii) $tRNA$ has more elaborated $3$-dimensional structure due to extensive base-pairing (iii) $tRNA$ is usually smaller than $mRNA$ (iv) $mRNA$ bears anticodon but $tRNA$ has codons,

• A. (i) and (ii)
• B. (ii) and (iii)
• C. (i), (ii) and (iii)
• D. (i), (ii), (iii) and (iv)

Answer 1

Answer: (B)

(ii) and (iii)

Answer 2

mRNA is the longest $RNA$ with maximum molecular weight but it is least abundant. $tRNA$ is the smallest and coiled like a clover leaf with elaborated $3$-dimensional structure. $mRNA$ consists of $75-6000$bases while $tRNA$ has $73-93$ bases.