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7th Grade DNA
Test Description: Genes and DNA
Instructions: Answer all questions to get your test result.
1) DNAis made of subunits called what?
A
proteins
B
deoxyribonucleic acid
C
traits
D
nucelotides
2) Nucleotides are made of sugar, a phosphate and a
A
ribosome
B
protein
C
gene
D
base
3) Who discovered that the amount if adenine in DNA always equals the amount of thymine?
A
Francis Crick
B
Erwin Chargaff
C
James Watson
D
Rosalind Franklin
4) What scientist made images of DNA by using X-ray diffraction?
A
Francis Crick
B
Erwin Chargaff
C
James Watson
D
Rosalind Franklin
5) What did Watson and Crick\'s model of DNA look like?
A
a ball
B
a straight line
C
links in a chain
D
a long, twisted ladder
6) A string of nucleotides that has information for making one trait is
A
a protein
B
an amino acid
C
a gene
D
a cell
7) Each set of three bases is a code for
A
a specific cell
B
a specific ribosome
C
a specific chromosome
D
a specific amino acid
8) The first step in making a protein is
A
mRNA going to ribosome
B
transfer RNA matching mRNA
C
RNA copying DNA
D
amino acids linked together
9) What is the type of mutation where a bas is added to the gene?
A
deletion
B
insertion
C
ultraviolet
D
substitution
10) Using DNA to identify who committed a cirme is
A
DNA cloning
B
genetic disease
C
genetic engineering
D
DNA fingerprinting
*select an answer for all questions
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