Question

25. What binds to a stop codon on a mRNA during translation? a. transcription factor c. termination factor b. tRNA d. transcription initiator 26. What is typically attached to the acceptor end of a tRNA? a. a protein b. an amino acid C a ribosome d. a nucleosome 27. During mRNA processing, what is put on the 3' end of a primary mRNA transcript? a. a poly-A tail b. a cap d. an intron c. an exon 28. Which of the following bases is used in RNA but not DNA? a. adenine b. thymine d. guanine c. uracil 29, What are the monomers of nucleic acids called? a. amino acids b. monosaccharides c carbon hat enzyme complex is responsible for DNA replicationi a. DNA polymerase b. RNA polymerase .hexokinase 31. What enzyme complex is responsible for transcription? a. DNA polymerase b. RNA polymerase , hexokinase 32. What is the molecule of inheritance? 30. W d. amylase d. amylase d. maltose c. protein a. DNA b. RNA 33. In which direction does RNA synthesis proceed? c. top to bottom d. 5' to 3 left to right b. 3' to 5 34. A tRNA in the P site of a ribosome is typically attached to a(n) d. none of the above b. polypeptide c. termination factor a. amino acid 5. Which of the following is NOT a stage of translation? a Initiation 36. The b. Expression c. Elongation d. Termination idea that different exons of the same gene can be bound together in different ways to create different proteins is called a. Alternative mRNA Splicing c. Post-translational control b. Endosymbiosis d. The Operon Model 37. What amino acid does the codon CUG code for? a. Arg b. Leu c. His d. Ser 38. What amino acid does the codon CAU code for? a. Arg b. Leu d. Ser C, His 39. What amino acid does the codon AGU code for? b. Leu c. His d. Ser 40. Which amino acid would most likely be attached to a tRNA with the anti-codon 5'-UGA-3 A. Gin b. Leu d. None of the above c. Ser

Answer 1

Answer 25

Termination factor is correct answer.

During termination of translation, termination factors binds to the stop codon resulting in the disassembly of translational machinery which results in the termination of translation.

Answer 26

Amino acid is correct answer.

Acceptor arm of tRNA is responsible for binding with amino acid, which will ultimately transferred to the translational machinery by tRNA and amino acid will get incorporated into the growing polypeptide.

Answer 27

Poly A tail is correct answer.

During post translational modification, poly A tail is attached to the 3' end of pre mRNA.

Answer 28

Uracil is correct answer.

Uracil is exclusively found in RNA.