1)Cystic fibrosis an autosomal recessive disorder caused by asingle gene, affects the lungs, the pancreas, the digestive system,and other organs, resulting in symptoms ranging from breathingdifficulties to recurrent infections. Which of the following termsbest describes this?
A)incomplete dominance
B)multiple alleles
C)codominance
D)epistasis
E)pleiotropy
2)What is one function of a signal peptide during peptidetranslation?
A)to terminate translation of the messenger RNA
B)to signal the initiation of transcription
C)to bind RNA polymerase to DNA and initiate transcription
D)to direct an mRNA molecule into the cisternal space of ER
E)to translocate polypeptide across the ER membrane
3)Which of the following statements correctly describes thefunction of a signal peptide?
A)It helps target a protein to the ER.
B)It signals the initiation of transcription.
C)It terminates translation of messenger RNA.
D)It directs an mRNA molecule into the cisternal space of theER.
