1- In E. coli protein synthesis, the initiation complex contains
A.50S ribosomal subunit, 23S RNA, IF1, IF3, mRNA, fMet-tRNA. B.30S ribosomal subunit, 5S and 16S rRNA, IF-1, IF-2, IF-3, GTP, mRNA, fMet-tRNA.
C.50S ribosomal subunit, 16S RNA, IF1, IF2, IF3, GTP, mRNA, fMet-tRNA. D.30S ribosomal subunit, 16S RNA, IF1, IF2, IF3, GTP, mRNA, fMet-tRNA.
E.30S ribosomal subunit, 23S rRNA, IF1, IF2, IF3, GTP, mRNA, fMet-tRNA.
2- In CRISPR/Cas9 genetic engineering, the guide RNA (gRNA)
A.deactivates the enzymatic activity of Cas9. B.All of the answers are correct. C.always recognizes the same target sequence in DNA
D.is made by joining crRNA with a linker ssRNA E.binds to the target DNA