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