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Lujan DNA Test
Test Description: 1st Test of 9 weeks
Instructions: Answer all questions to get your test result.
1) What are the correct base pairings in DNA?
A
C-T and G-A
B
A-T and C-G
C
G-U and T-A
D
A-U and C-G
2) The following would be a nucleotide found in RNA.
A
phosphate, adenine, and ribose
B
phosphate, adenine, and deoxyribose
C
phosphate, thymine, and ribose
D
phosphate, uracil, and deoxyribose
3) The bases of the DNA molecule bond with a ____ bond.
A
hydrogen
B
covalent
C
peptide
D
nitrogen
4) The ___ takes the message to the ribosome telling it what protein to produce.
A
tRNA
B
rRNA
C
nRNA
D
mRNA
5) What happens during replication?
A
Proteins are made.
B
Ribosomes are made.
C
RNA is copied.
D
DNA is copied.
6) which base is found only in RNA?
A
adenine
B
guanine
C
uracil
D
thymine
7) The main function of tRNA in protein synthesis is to
A
transcribe genes from DNA
B
connect nucleotides together
C
transfer amino acids
D
carry proteins to the ribosome
8) Proteins are made up of a sequence of
A
chromosomes
B
base pairs
C
amino acids
D
nucleotides
9) Mutations are changes in
A
the cell cycle
B
tRNA
C
proteins
D
DNA
10) DNA replication results in...
A
two identical moloecules of DNA one with one original strand and one with a copied strand
B
1 molecule of new DNA and 1 molecule of old DNA
C
2 identical molecules of DNA and 1 original molecule
D
1 molecule of DNA
11) DNA is made of subunits called what?
A
nucelotides
B
traits
C
deoxyribonucleic acid
D
proteins
12) Nucleotides are made of sugar, a phosphate and a
A
gene
B
protein
C
ribosome
D
base
13) Who discovered that the amount if adenine in DNA always equals the amount of thymine?
A
Rosalind Franklin
B
Erwin Chargaff
C
James Watson
D
Francis Crick
14) Each set of three bases is a code for
A
a specific amino acid
B
a specific cell
C
a specific ribosome
D
a specific chromosome
15) The first step in making a protein is
A
transfer RNA matching mRNA
B
mRNA going to ribosome
C
amino acids linked together
D
RNA copying DNA
16) The form of mutation where one base is replaced by another kind
A
substitution
B
mutagen
C
deletion
D
insertion
17) The process by which the genetic code of DNA is copies into complementary sequence of RNA is called
A
translation
B
transcription
C
transformation
D
replication
18) In which way does RNA differ from DNA?
A
RNA contains uracil and ribose
B
RNA contains adenine and ribose
C
RNA contains ribose and thymine
D
RNA contains uracil and deoxyribose
19) A section of DNA with bases ATTCGC will line up with DNA bases
A
TAAGCC
B
TAAGCG
C
ATTCGC
D
TAAGGC
20) The process of decoding mRNA into a polypeptide chain or a protein is known as
A
tranformation
B
replication
C
translation
D
transcription
*select an answer for all questions
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