Question

i) Which is the initiation codon ? Where is it present?

ii) What are the types of RNA present inside the ribosome ? which triplet codon is

present on it?

iii) Which genetic code is present on mRNA that is leaving the nucleus ? What must be the

sequence on DNAto have such code on Mrna?​

Answer 1

Explanation:

i) The start codon is the first codon of a messenger RNA (mRNA) transcript translated by a ribosome. The start codon always codes for methionine in eukaryotes and Archaeology and a modified Met in bacteria, mitochondria and plastids. The most common start codon is AUG (i.e., ATG in the corresponding DNA sequence).

ii) Types of RNA present inside a ribosome are mRNA , rRNA and tRNA. : Messenger RNA plays a vital role in carrying the important instructions from the nucleus to the cytoplasm.

iii) The genetic code UAG is repeated 3times to stop the product of polymerase.