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