In eukaryotes during post transcriptional modification, which of the following enzyme/s can degrade mRNA before its translation?
a) phosphatases
b) nucleases
c) helicase
d) both a and b
Which of the following event/s occur/s during the post transcriptional modification of mRNA in eukaryotes?
a) removal of introns
b) addition of cap
c) addition of tail
d) all of these
The removal of introns and maturation of primary mRNA to secondary or functional mRNA is called………
a) RNA binding
b) RNA degradation
c) RNA splicing
d) RNA synthesis
Explanation: RNA splicing is a process that removes the intervening, non-coding sequences of genes (introns) from pre-mRNA and joins the protein-coding sequences (exons) together in order to enable translation of mRNA into a protein
During post transcriptional modification of mRNA, a poly……tail is attached to 3’ end of mRNA.
a) A
b) G
c) C
d) U
Explanation: Called poly A tail
Genetic code is the sequence of …….. that
determines the specific..…sequence.
a) amino acids----nucleotides
b) nucleotides---nucleotides
c) nucleotides---amino acids
d) amino acids---amino acids
Which of the following is/are biochemical basis of heredity?
a) gene
b) genetic code
c) protein
d) all of these
Explanation: genetic code is nearly universal in all organisms
