Download _____1. Which process is represented by arrow “1” in the diagram

_____1. Which process is represented by arrow “1” in the diagram above?
A.
B.
C.
D.
Transcription
Translation
Replication
Respiration
_____2. Which process is represented by arrow “2” in the diagram above?
A. Transcription
B. Translation
C. Replication
D. Respiration
_____3. In a molecule of double-stranded DNA, the amount of thymine present is always equal to the amount of
A. cytosine.
B. guanine.
C. adenine.
D. uracil.
_____4. A portion of one strand of a DNA molecule has the sequence shown below.
ACC TGA AGG
Assuming there are no mutations in this portion of the DNA, what is the corresponding sequence on the complementary
DNA strand?
A. ACC TGA AGG
B. GTT CAG GAA
C. TGG ACT TCC
D. UGG ACU UCC
_____5. Fireflies produce light inside their bodies. The enzyme luciferase is involved in the reaction that produces the
light. Scientists have isolated the luciferase gene.
A scientist inserts the luciferase gene into the DNA of cells from another organism. If these cells produce light, the
scientist knows that which of the following occurred?
A. The luciferase gene mutated inside the cells.
B. The luciferase gene was transcribed and translated.
C. The luciferase gene destroyed the original genes of the cells.
D. The luciferase gene moved from the nucleus to the endoplasmic reticulum.
_____6. Which of the following statements best describes a DNA molecule?
A. It is a double helix.
B. It contains the sugar ribose.
C. It is composed of amino acids.
D. It contains the nitrogenous base uracil.
_____7. In phenylketonuria (PKU), an enzyme that converts one amino acid into another does not work properly. Which
of the following is the most likely cause of this genetic condition?
A. an error in the transcription of the
gene for the enzyme
B. a mutation in the DNA sequence
that codes for the enzyme
C. an excess of the amino acids
necessary to produce the enzyme
D. a structural variation in the amino
acid modified by the enzyme
_____8. The diagram below shows a strand of DNA matched to a strand of messenger RNA.
What process does this diagram represent?
A. mutation
B. respiration
C. transcription
D. translation
____9. Why is the particular sequence of bases in a segment of DNA important to cells?
A. Some base sequences code for protein production.
B. Some base sequences cause the release of lipids from the nucleus.
C. Some base sequences contain the order of sugars in polysaccharides.
D. Some base sequences produce electrical signals sent to the cytoplasm.
_____10. DNA and RNA are similar because they both contain
A. deoxyribose.
B. nucleotides.
C. thymine.
D. double helices.
1
2
_____11. Which process is represented by “1” in the diagram above?
A. Transcription
B. Translation
C. Replication
D. Respiration
_____12. Which process is represented by arrow “2” in the diagram above?
A. Transcription
B. Translation
C. Replication
D. Respiration
_____13. Which process is represented in the diagram above?
A. Transcription
B. Translation
C. Replication
D. Respiration
_____14. What amino acid chain would be correct for the following DNA strand?
TAC TTT ATA AGC CCC ATC
A. ATGAAATATTCGGGGTAG
B. AUGAAAUAUUCGGGGUAG
C. Met-lys-tyr-ser-gly-end
D. Met-lys-end
_____15. What kind of mutation happened in the example below?
Original DNA Strand: TAC TTT ATA AGC AAA ATC
Mutated DNA Strand: TAC TTT ATA ACC AAA ATC
A. Addition Mutation
B. Deletion Mutatio n
C. Substitution Mutation
D. Frameshift Mutation