Question

e t ilisation", "normal lettilizatio For each d o BUV or the perin Then spedly how them ption, Indicate whether the protein is normally expressed in the indicate whether the protein is norman en Then specify how the mutation will affect fertilization by writing em). Naledon table pohled ontlastinger O", "normal fertilization" or "polyspermny" (fertilization by more than 1 Protein Outcome Explain your made in: Less fertilization, answer in a few Oocyle or normal fertilization words sperm? or polyspermy? React receptor fenet Mutation change the codon in the mRNA hom ' A' to 'UGAS' (out of 250 Gene for digestive enzyme in erosome: Insertion mutation adds one basepair in the codon (out of 150 1 U114). Bindin gene: A mutation changes the 15 codon in bindin mRNA from S'CCU' to 'CCA3' (out of 50 codons) In separate scenario, a mutation in an intron of the gene for the jelly coat receptor results in very low fertilization rates. Which cell expresses this receptor? (Circle ONE) sperm oocyte I sugest one explanation connecting the mutation and outcome. A full credit answer will explain the change in the intron and how it affects the protein. (Answer in 1-2 sentences) Second letter Nothing will be graded below this line. LI >COOCOOCOOC Third letter

Answer 1

9.a) redact receptor gene - it is made in sperm .- after less fertilization -because this mutation will stop protein synthesis as UGA IS A STOP CODON.

B) MADE IN SPERM - LESS FERTILIZATION - BECAUSE THIS ADDITION WILL CHANGE ALL THE PROTEIN SEQUENCES AS THIS IS FRAMESHIFT MUTATION.

C)BINDIN GENE - MADE IN SPERM cell - normal fertilization will be seen - because both the codon codes same amino acid which is propone.

D.i) jelly coat receptor is expressed in sperm.

Ii) as the intron is spliced out and the Econs are ligated and produced functional proteins but if the mutation is happend in the introns , splicing then may be affected and thus one intron may be present in the protein sequence which had to be spliced out or one Econs are being spliced out but it should had to remain.

Thank you