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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 builds the string of amino acids
D
It unzips and unwinds the DNA
2) If you were given a DNA segment ACG, what would the complementary mRNA strand look like?
A
TGC
B
UCG
C
AGC
D
UGC
3) What type of bond forms between two amino acids?
A
Covalent bond
B
Peptide bond
C
Hydrogen bond
D
Ionic bond
4) Which of these choices does NOT affect the function of the final protein?
A
Length
B
Color of the molecules
C
Order of the amino acids
D
Folding pattern
5) Where does the mRNA go after it leaves the nucleus? Why?
A
Cytoplasm; to float around aimlessly
B
Ribosome; to serve as a template for the tRNA molecules
C
Cytoplasm; to create a second mRNA molecule
D
Nuclear membrane; to serve as a template for the tRNA molecule
6) If our codon reads GUG, what amino acid would join the chain?
A
Glycine
B
Guanine
C
Valine
D
Histidine
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 amino acids are interchangeable
B
Function stays the same; Because the protein would fold differently
C
Function would change; Because the protein would fold differently
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 ribosome to break apart and finish building the protein
C
Signals the mRNA molecule to break apart
D
Signals the protein molecule to form peptide bonds
9) Which enzyme is not used during the process of protein synthesis?
A
All of these are used during protein synthesis
B
Helicase
C
RNA polymerase
D
Lipase
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 serves as a template for the entire genome
D
It codes for a DNA molecule
*select an answer for all questions
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