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