DNA test questions
1. Each rung of the DNA ladder is made of
A. a single nitrogen base
B. a pair of nitrogen bases
C. three nitrogen bases.
D. four nitrogen bases.
2. During DNA replication, adenine (A) always pairs with
A. guanine (G)
B. cytosine (C)
C. thymine (T)
D. adenine (A).
3. During the creation of RNA from a strand of DNA, adenine (A) always pairs with
A. guanine (G)
B. cytosine (C)
C. uracil (U)
D. adenine (A).
4. DNA is composed of —
A. glucose molecules.
B. fatty acids.
C. amino acids
5. What is true about mutations?
A
They occur randomly.
C
They appear every other generation.
B. They occur on a regular basis.
D. They are usually beneficial to the organism.
D. nucleotides.
6. A sudden change in a characteristic caused by a change in a gene or a chromosome is called a/an
A. alteration.
B variation
C. mutation
D. assortment
7. The order of the bases along a gene determines the order in which
A. sugars are put together to form a carbohydrate.
B. genes are arranged on a chromosome.
C. amino acids are put together to form a protein.
D. chromosomes are arranged in the nucleus.
8. Where does protein synthesis take place?
A. in the ribosomes in the nucleus of the cell
B. on the ribosomes in the cytoplasm of the cell
C. in the chromosomes in the nucleus of the cell
D. on the chromosomes in the cytoplasm of the cell
9. What does messenger RNA do during protein synthesis?
A. copies the coded message from the DNA and carries it into the cytoplasm
B. copies the coded message from the DNA and carries it into the nucleus
C. carries amino acids and adds them to the growing protein
D. copies the coded message from the protein and carries it into the nucleus
10. What do transfer RNA molecules do during protein synthesis?
A.
copy the coded message from the protein and carry it into the nucleus
B.
copy the coded message from the DNA and carry it into the nucleus
C.
carry amino acids and add them to the growing protein
D.
copy the coded message from the DNA and carry it into the cytoplasm
11. Which nitrogen base in RNA is NOT part of DNA?
A. adenine
B. guanine
C. cytosine
D. uracil
12. No two people have the same DNA, except for
A. crime suspects. B. brothers.
C. sisters.
D. identical twins.
MATCHING:
13.
14.
15.
16.
17.
18.
DNA
Nitrogen bases
Double helix
Deoxyribose
DNA replication
Genes
A. a section of RNA that is only 3 nucleotides long
B. the process of RNA and ribosomes working together to produce
C. the process of DNA creating a strand of RNA
D. sugar in the RNA molecule
E. Ribonucleic acid – molecule that carries information from nucleus
F. sections of DNA that controls specific human characteristics such as
height and hair color
G. The copying of DNA
H. shifts the reading frame of the genetic message so that the protein may
not be able to perform its function.
I. changes in one or a few nucleotides
J. any change in your DNA that affects genetic information
(DNA) to ribosomes in the process of making proteins
K. sugar that makes up part of the DNA molecule
L. twisted ladder shape of the DNA molecule
M. 4 bases that make up the “rungs” of the DNA molecule (A, T, C and G)
proteins.
N. the creation of proteins in ribosomes
O. Deoxyribose nucleic acid – hereditary material in nucleus of cells
19. Mutations
20. Point mutations
21. Frameshift mutations
22. RNA
23. Ribose
24. Transcription
25. Protein translation
26. Protein synthesis
27. Codon
28. Create the complimentary strand of DNA during replication using the following side of DNA:
A
C
G
A
T
T
C
G
A
T
A
C
G
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29. Create a strand of RNA from the following side of DNA:
T
A
C
G
G
A
A
T
A
T
A
G
C
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