Above are illustrated the critical segments of precursor mRNA sequence that are involved in spliceosome mediated RNA splicing. Which two nucleotides are joined bythe first transesterification reaction in the first step of the splicing mechanism?<INPUTTYPE=\ c and d<INPUTTYPE=\ a and ex<INPUTTYPE=\ b and c<INPUTTYPE=\ a and c<INPUTTYPE=\ a and bQuestion 6Which of the following statements about alternative splicing are true?Question 7Hydrophobic residues located at precisely interspaced intervals alignedalong an extended α-helical region which are responsible for homo-
and heterodimerisation are characteristic of which transcription factor (s)?More than one answer may be correct, so you may select multiple responses. You will lose partial credit for each incorrect response selected, and gain partial credit for each correct response selected.<INPUTTYPE=\all dimeric transcription factors <INPUTTYPE=\ zinc finger transcription factors<INPUTTYPE=\ Gal4x<INPUTTYPE=\ leucine zippers transcription factorsx<INPUTTYPE=\ HLH transcription factorsQuestion 8Poly(A) polymerase is required for the formation of the poly(A) tail. To perform its task, poly(A) polymerase has the following characteristic:<INPUTTYPE=\ It tightly binds to the downstream poly(A) signal in the RNA transcript.Question 9Which of the following is/are true? You will be penalized for wrong answers.
<INPUTTYPE=\a) The spiceosome proteins are conserved in eukaryotes andprokaryotes.<INPUTTYPE=\b) The Ran GTPase efficiently hydrolyzes GTP to GDP.c) NLS and NES sequences are added post-transcriptionally to proteins based on their function in the cytoplasm or nucleus (or both).xd) During splicing, snRNAs base pair with pre-mRNAView FeedbackWhich of the following is not involved in alternative splicing in eukaryotes?More than one answer may be correct, so you may select multiple responses. You will lose partial credit for each incorrect response selected, and gain partial credit for each correct response selected.<INPUTTYPE=\RNA binding proteins<INPUTTYPE=\the spliceosome<INPUTTYPE=\hnRNPsx<INPUTTYPE=\self-splicing group II introns