A sequence of 50-250 adenine nucleotides added onto the 3’ end of a pre-mRNA molecule.Group of answer choicespoly-G tail5’ cappoly-A tail3’ UTR3’ cap5’ UTRpoly-P tailNext

A modified form of guanine nucleotide added onto the 5’ end of a pre-mRNA molecule.Group of answer choicespoly-P tailpoly-G tail5’ cap3’ cap3’ UTRpoly-A tail5’ UTR

The mRNA nucleotide triplets are called _____, and they are customarily written in the _____ direction.Group of answer choicesanticodons … 5’→3’anticodons … 3’→5’codons … 5’→3’codons … 3’→5’Next

How many nucleotides are typically present in the 5’ cap of eukaryotic pre-mRNA?

The 5' -terminal cap structure of eukaryotic mRNA is aGroup of answer choices5-methylguanosine joined to mRNA via a 5' -- 3' diphosphate linkageO-methylguanosine joined to the mRNA via 5' -- 5' triphosphate linkage7-methylguanosine joined to the mRNA via a 5' -- 5' triphosphate linkage5-methylcytosine joined to the mRNA via a 5' -- 3' triphosphate linkage

A three-nucleotide sequence of DNA or mRNA that specifies a particular amino acid or termination signal.Group of answer choicestranscription unitcodonintronanticodonexon