E-PolyLearning

Welcome to the largest collection of MCQs on the Internet. Access and Discuss these Multiple choice questions for various competitive Exams and Interviews.
16. Translation begins
a. at the replication fork
b. on the lagging strand
c. at the start codon
d. in nucleus
View Answer Report Discuss 50-50!
Answer: (c).at the start codon

17. Transcription factors are
a. promoters
b. proteins which bind to DNA and regulate transcription
c. TATA boxes
d. CATT boxes
View Answer Report Discuss 50-50!
Answer: (b).proteins which bind to DNA and regulate transcription

18. The major function of RNA polymerase's sigma factor is
a. recognition of the translational stop sequence
b. recognition of the transcriptional start sequence
c. recognition of the transcriptional stop sequence
d. recognition of the translational start sequence
View Answer Report Discuss 50-50!
Answer: (b).recognition of the transcriptional start sequence

19. Most transcripts of protein coding genes are cleaved
a. at the 3' end just after a poly adenylation signal
b. at the 3' end just before a poly adenylation signal
c. at the 5' end immediately after a poly adenylation signal
d. at the 5' end immediately before a poly adenylation signal
View Answer Report Discuss 50-50!
Answer: (a).at the 3' end just after a poly adenylation signal

20. RNA is synthesized on a DNA template in a process called __________ , which utilizes the enzyme __________
a. translation, RNA polymerase
b. transcription, DNA polymerase
c. transcription, RNA polymerase
d. replication, DNA polymerase
View Answer Report Discuss 50-50!
Answer: (c).transcription, RNA polymerase

Page 4 of 42