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