What is necessary for a eukaryotic rna to be recognized and bound by the small subunit of the ribosome?
a) formation of the pre-initiation complex before ribosome binding.
b) formation of the initiation complex before ribosome binding.
c) sufficiently large 5' utr for ribosome scanning.
d) presence of 5' methyl-g cap on the mrna.
e) presence of an aug start codon near the 5' end of the mrna.

The correct answer will be option-C

Explanation:

Untranslated region or UTR is the regions of the mRNA which are not translated to proteins but plays an important role during translation.

The untranslated region is present on both the sides of the coding sequence that is at 5' end called 5' UTR or leader sequence and 3' UTR or trailer sequence.

The presence of 5' UTR is very important for transcription as the sequence of the UTR is recognized by the small subunit of the ribosome which allows the small subunit of the ribosome to initiate the process of translation.

Thus, Option-C is the correct answer.