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Protein Synthesis
Test Description: Contains tests about transcription and translation
Instructions: Answer all questions to get your test result.
1) What is the purpose of RNA polymerase in transcription?
A
It reads a DNA strand to form a complementary DNA strand
B
It reads a DNA strand to make mRNA
C
It unzips and unwinds the DNA
D
It builds the string of amino acids
2) If you were given a DNA segment ACG, what would the complementary mRNA strand look like?
A
TGC
B
UGC
C
AGC
D
UCG
3) What type of bond forms between two amino acids?
A
Peptide bond
B
Covalent bond
C
Ionic bond
D
Hydrogen bond
4) Which of these choices does NOT affect the function of the final protein?
A
Length
B
Folding pattern
C
Order of the amino acids
D
Color of the molecules
5) Where does the mRNA go after it leaves the nucleus? Why?
A
Cytoplasm; to float around aimlessly
B
Nuclear membrane; to serve as a template for the tRNA molecule
C
Ribosome; to serve as a template for the tRNA molecules
D
Cytoplasm; to create a second mRNA molecule
6) If our codon reads GUG, what amino acid would join the chain?
A
Guanine
B
Histidine
C
Valine
D
Glycine
7) If one of our amino acids was changed in our protein molecule, what might happen to the function of the protein? Why?
A
Function stays the same; Because the protein would fold differently
B
Function would change; Because the protein would fold differently
C
Function stays the same; Because amino acids are interchangeable
D
Function would change; Because the molecule would break down
8) What is the function of the last codon in the mRNA sequence?
A
Signals the ribosome to attach to the mRNA molecule
B
Signals the mRNA molecule to break apart
C
Signals the ribosome to break apart and finish building the protein
D
Signals the protein molecule to form peptide bonds
9) Which enzyme is not used during the process of protein synthesis?
A
Lipase
B
Helicase
C
RNA polymerase
D
All of these are used during protein synthesis
10) What is the function of a gene?
A
It codes for a specific protein which produces a trait
B
It codes for a single amino acid to be placed in the chain
C
It codes for a DNA molecule
D
It serves as a template for the entire genome
*select an answer for all questions
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