(a) Name the scientist who called tRNA an adapter molecule
(b) Draw a clover leaf structure of t-RNA showing the following :
(i) tyrosine attached to its amino acid site (ii) anticodon for this amino acid in its correct site (codon for tyrosine is UCA)
(c) What does the actual structure of t-RNA look like.

Explanation

(1) Francis crick called t-RNA the adaptor molecule
(b) t-RNA the adapter molecule (A clover leaf structure
See Q. 21, Set-I, Outside. Delhi, 200
(c) The actual structure of t-RNA is inverted L For initiation, there is another specific t RNA that is referred to as initiator t-RNA. ,There are no t-RNA for stop codons.