Title: Unit 4 Quiz
Course: SAT 170 Introductory Biotechnology > Section: SAT 170 Introductory Biotechnology

Q: In which of the following key players of translation would you find codons?
- ribosomes
- tRNA
- mRNA
- DNA
- nucleus
A: mRNA

Q: What mRNA will be formed from the following DNA Template: CACGTGGACTGGGGACTC?
- CACGUGGACUGGGGACUC
- CACGTGGACTGGGGACTC
- GTGCACCTGACCCCTGAG
- GUGCACCUGACCCCUGAG
- none of the above
A: GUGCACCUGACCCCUGAG

Q: Which of the following correctly illustrates the central dogma of genetic information?
- DNA → Protein→ RNA
- RNA → Protein→ DNA
- DNA → RNA → Protein
- RNA → DNA → Protein
- mRNA → tRNA → Protein
A: DNA → RNA → Protein

Q: Which of the following occurs during codon recognition of translation elongation?
- a tRNA in the P site transfers its amino acid to the tRNA in the A site
- a tRNA binds to the codon in the A site
- a tRNA which has recently transferred its amino acid moves from the P site to the E site to exit
- a tRNA which is carrying the growing chain of amino acids moves from the A site to the P site
- both (c) and (d)
A: a tRNA binds to the codon in the A site

Q: Which of the following occurs during translation initiation?
- the ribosome binds to the mRNA
- the start codon of the mRNA is placed in the P site of the ribosome
- the initiator tRNA binds to the start codon of the mRNA in the ribosome
- all of the above
- (a) and (b) only
A: all of the above

Q: The anticodon of a particular tRNA molecule is
- complementary to the corresponding mRNA codon
- complementary to the corresponding triplet in rRNA
- the part of tRNA that bonds to a specific amino acid
- changeable, depending on the amino acid that attaches to the tRNA
- none of the above
A: complementary to the corresponding mRNA codon

Q: A stop codon signals the termination of transcription.
- True
- False
A: False

Q: A modified guanine is attached to the 3’ end of the mRNA molecule to protect it from degradation.
- True
- False
A: False

Q: A protein that is destined to carry out its function in the plasma membrane will be synthesized on a ribosome of the rough ER.
- True
- False
A: True

Q: A missense mutation occurs when a codon is changed in such a way that it codes for a different amino acid.
- True
- False
A: True

Q: A genetic mutation in which a piece of a chromosome is moved to a different chromosome is known as a(n) ____________________.

Q: Non-coding regions of DNA that are removed during splicing are known as ______.

Q: Enzymes that are able to degrade nucleic acids are known as ___________.

Q: ______________synthesizes mRNA molecules complementary to a strand of DNA during transcription.

Q: Describe two differences in the process of gene expression in prokaryotes and eukaryotes.