Question

Define them a)promoter. b)primer. c)Genomic Rna/Virion Rna. d)Antigenomic RNA/Subgenomic Rna.e)ORF.f)RF/RI.f)super group

Answer 1

A. Promoter = A sequence upstream of the transcription initiation site to which RNA polymerase binds and start transcription .

B. Primer = It is the small sequence of DNA or RNA for the initiation synthesis of DNA.

C. Genomic RNA = nucleic acid having ribose sugar(RNA) which is used for genetic inheritance/genome is termed as genomic RNA found in some viruses .

D. Antigenomic RNA = RNA have the same sequence at 3'end as that of genomic RNA but have deletions in the 5'end which is used for complementary to the genomic RNA in the ORF.

E. ORF = A sequence start with start codon and ends with stop codon is termed as open reading frame.

F. RF = reading frame is the sequence of three non overlapping codons in a nucleotide sequence .

G. Sugar groups= The aggregation of related organisms can be classified in a super groups to avoid confusion .