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DNA + Protein Synthesis
Test Description: TEST
Instructions: Answer all questions to get your test result.
1) Who were the scientist(s) who built a 3-D model?
A
Watson and Crick
B
Chargaff and Franklin
C
Avery and Griffith
D
Hershey and Chase
2) What is the role of the enzyme DNA helicase?
A
To unzip DNA by breaking the hydrogen bonds between the hydrogen bases during replication.
B
To line up new base pairs during replication.
C
To proofread and correct any errors during replication.
D
To translate the DNA code into messenger-RNA
3) What happens during transcription?
A
m-RNA Is made from DNA in the nucleus
B
r-RNA helps make a protein
C
A protein is made in the nucleus
D
t-RNA deliers amino acids at the ribosome
4) How many nitrogen bases are found in m-RNA?
A
3
B
4
C
1
D
2
5) A substitution of one nucleotide is called a
A
frameshift mutation
B
insertion
C
deletion
D
point mutation
6) Which scientists conducted DNA X-ray diffraction which showed the helical shape?
A
Chargaff and Franklin
B
Hershey and Chase
C
Watson and Crick
D
Avery and Griffith
7) Where does translation take place in a cell?
A
cytoplasm
B
mitochondria
C
nucleus
D
ribosome
8) What is the m-RNA codon for the following DNA strand: GAG TAC CTA
A
CUC AUG GAU
B
GTG ATG GAT
C
GAG AUG GAU
D
CTC ATG GAT
9) What occurs during DNA replication?
A
m-RNA is formed from DNA
B
a protein is formed in the nucleus
C
DNA unzips and makes an exact copy prior to cell division
D
t-RNA brings amino acids to the ribosome
10) What are the parts of a nucleotide?
A
amino acid, sugar, nitrogen base
B
phosphate group, protein, sugar
C
nitrogen base, phosphate, sugar
D
nitrogen base, protein, sugar
*select an answer for all questions
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