the diagram below shows the key steps for making proteins
TRANSCRIPT
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The diagram below shows the key steps for making proteins. Use the diagram to answer the following question(s).
According to the diagram, in which step is messenger RNA being constructed?
A. I B. II C. III D. IV
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Which of these is a sugar?
A. 1 B. 2 C. 3 D. 4
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The diagram below shows the key steps for making proteins. Use the diagram to answer the following question(s).
Which step involves transfer RNA?
A. I B. II C. III D. IV
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Which of these is a nucleotide?
A. 1 B. 2 C. 3 D. 4
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The diagram below shows the key steps for making proteins. Use the diagram to answer the following question(s).
Which step involves ribosomes?
A. I B. II C. III D. IV
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Use the diagram below to answer the following question.
Which statement describes the diagram?
A. DNA transcription is producing messenger RNA. B. DNA transcription is producing ribosomal RNA.
C. DNA translation is producing messenger RNA. D. DNA translation is producing ribosomal RNA.
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Which diagram correctly models the process of protein synthesis?
A.
B.
C.
D.
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The table shows which mRNA codons code for various amino acids.
Which amino acid sequence will be produced by translation of the mRNA sequence UAC UCUACC?
A. Asn – Pro – Thr B. Thr – Pro – Asn C. Thr – Ser – Tyr D. Tyr – Ser – Thr
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Which of these is best demonstrated by the experiment above?
A. Differentiated cells contain a complete set of genes.
B. All frogs are genetically identical.
C. Embryonic development is controlled by the cytoplasm.
D. The nucleus of a tadpole cell is unspecialized.
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Which of the following models most accurately represents the structure of DNA?
A. B.
C. D.
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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
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A strand of mRNA containing the repeating sequence AAGAAGAAGAAG could code for which of thefollowing amino acid sequences?
A. lys–arg–glu–lys B. ser–ser–glu–glu C. lys–arg–lys–arg D. lys–lys–lys–lys
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What is the relationship between the three structures in the diagram above?
A. DNA is produced by protein which is produced in the cell.
B. Protein is composed of DNA which is produced in the cell.
C. DNA controls the production of protein in the cell.
D. A cell is composed only of DNA and protein.
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The messenger RNA codes for six different amino acids are shown in the table below.
MESSENGER RNA CODESFOR AMINO ACIDS
Amino Acid Messenger RNA Codes
Arginine CGU, CGC, CGA, CGG
Cysteine UGU, UGC
Glutamic acid GAA, GAG
Leucine CUU, CUC, CUA, CUG
Serine AGU, AGC
Valine GUU, GUC, GUA, GUG
In one type of mutated gene for hemoglobin, CAC has replaced the normal CTC in the DNAcode. What amino acid substitution has taken place in the mutated hemoglobin?
A. Serine has replaced leucine. B. Arginine has replaced leucine.
C. Valine has replaced glutamic acid. D. Cysteine has replaced glutamic acid.
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Which of these represents the structure of messenger RNA?
A. B.
C. D.
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This chart represents amino acids that are coded from different combinations of mRNA codons.
Which amino acid sequence can be coded from the DNA sequence CAG TAG CGA?
A. Valine — Isoleucine — Glycine B. Valine — Aspartic Acid — Alanine
C. Valine — Isoleucine — Alanine D. Valine — Phenylalanine — Alanine
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A researcher recently discovered a species of bacteria. DNA sequences were obtained from itand from several other species of bacteria. The DNA sequences came from the same part of thebacterial chromosome of each species.
According to the data above, the unknown bacteria are most closely related to which species?
A. Species I B. Species II C. Species III D. Species IV
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Two segments of DNA are shown in the diagram below.
Normal thymine (T) is found in the old strand. It is replaced by an abnormal molecule (T*) inthe new strand. The abnormal molecule (T*) binds to guanine (G) instead of binding to adenine(A). This is an example of
A. an adaptation B. protein synthesis C. a mutation D. binary fission
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This chart shows a list of messenger RNA codons.
A strand of DNA with the sequence AAC AAG CCC undergoes a mutation, and the first A is changed to a C. How will this mutation affect theamino acid sequence?
A. One amino acid will change. B. Two amino acids will change.
C. All of the amino acids will change. D. The amino acids will remain the same.
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The table shows a mutation in a DNA sequence.
Original Sequence GCA TAT GCT ATA GCG ACT
Mutated Sequence GCA TTG CTA TAG CGA CT
What is the result of this mutation during the translation process?
A. The translation process will fail to begin.
B. The mRNA will be translated at a faster rate than normal.
C. Everything after the mutation will be translated incorrectly.
D. Some of the proteins formed during translation will be unstable.
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Below are parts of the mitochondrial DNA codes for the American black bear, thegiant panda, the red panda, and the raccoon.
MITOCHONDRIAL DNA CODES
Organism DNA Codes
American black bear ATT GGA GCA GAC TTA
Giant panda ATT GGC ACT AAT CTA
Red panda ATT GGA ACT AAC CTT
Raccoon ATC GGA TCT AAC CTT
Based on this information, which two species are most closely related?
A. the American black bear and the giant panda
B. the American black bear and the raccoon
C. the red panda and the raccoon
D. the red panda and the giant panda
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Which of the following is the template for the production of RNA within a cell?
A. DNA B. ATP C. protein D. carbohydrate
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Which sequence of DNA bases would pair with the ones shown in the partial strandbelow?
A. B.
C. D.
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What molecules do both DNA and RNA contain?
A. uracil B. thymine C. nucleotides D. deoxyribose
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The genetic material of an organism is composed of
A. lipids. B. proteins.
C. deoxyribonucleic acids. D. complex carbohydrates.
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Which of the following best describes how DNA and RNA are similar?
A. They both contain the nitrogen bases thymine and adenine.
B. They both are formed in a double-helix structure.
C. They both are composed of five different nucleotides.
D. They both contain the nitrogen bases cytosine and guanine.
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5’ ATCAGCGCTGGC 3’
The above sequence of DNA is part of a gene. How many amino acids are codedfor by this segment?
A. 4 B. 8 C. 12 D. 20
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A scientist puts nucleotide chains of UUUUUU in a test tube under conditionsallowing protein synthesis. Soon the test tube is full of polypeptide chains composedof only the amino acid phenylalanine. What does this experiment indicate?
A. The amino acid phenylalanine is composed of uracil.
B. UUU codes for the amino acid phenylalanine.
C. Protein synthesis malfunctions in test tubes.
D. Most proteins contain only one type of amino acid.
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Which of these would most likely cause a mutation?
A. the placement of ribosomes on the endoplasmic reticulum
B. the insertion of a nucleotide into DNA
C. the movement of transfer RNA out of the nucleus
D. the release of messenger RNA from DNA
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One human disease is caused by a change in one codon in a gene from GAA toGUA. This disease is the result of
A. a mutation. B. a meiosis error.
C. crossing-over. D. polyploidy.
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A base sequence is shown below.
ACAGTGC
How would the base sequence be coded on mRNA?
A. TGTCACG B. GUGACAU C. UGUCACG D. CACUGUA
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A substitution of thymine with adenine in one DNA codon causes a particulardisorder.
Which statement explains how the change in DNA leads to this disorder?
A. The deletion mutation prevents the production of the hemoglobin protein in thebody.
B. The frameshift mutation prevents the production of several proteins found in theblood.
C. The insertion mutation causes extra hemoglobin proteins to attach to red bloodcells.
D. The point mutation causes a different amino acid to be added to the hemoglobinprotein.
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DNA contains the code for constructing which molecules?
A. proteins B. fats C. starches D. sugars
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Genetic information usually flows in one specific direction. Which of the followingbest represents this flow?
A. DNA → Protein → RNA B. Protein → RNA → DNA
C. RNA → Protein → DNA D. DNA → RNA → Protein
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DNA and RNA are similar because they both contain
A. deoxyribose. B. nucleotides.
C. thymine. D. double helices.
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Which of the following units are repeatedly joined together to form a strand ofDNA?
A. amino acids B. fatty acids
C. nucleotides D. polysaccharides
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In a molecule of double-stranded DNA, the amount of adenine present is alwaysequal to the amount of
A. cytosine. B. guanine. C. thymine. D. uracil.
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During DNA replication, the wrong nucleotide was inserted in the DNA sequence.Which of the following terms describes this situation?
A. mutation B. regeneration C. transcription D. translation
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Hemoglobin is a protein that carries oxygen in red blood cells. The hemoglobinmolecules produced by some people have one specific amino acid that is differentfrom the amino acid at that position in normal hemoglobin.
Which of the following is the most likely cause of this amino acid variation?
A. The hemoglobin gene contains a mutation.
B. An error occurs during the folding of the hemoglobin protein.
C. Enzymes replace the amino acid once the hemoglobin is produced.
D. An additional amino acid is mistakenly inserted into the hemoglobin duringtranslation.
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Which of these will most likely happen if a change occurs in the sequence of basesin DNA?
A. An altered protein will be made.
B. Messenger RNA will not be transcribed.
C. A cell will die.
D. A gene will be deleted.
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Look at the DNA sequence below.
GAA TTC GCA
What do the G and A represent in the DNA sequence?
A. sugars B. amino acids C. phosphates D. nitrogen bases
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Which of these results when one nitrogen base replaces another in a segment ofgenetic material?
A. an enzyme substrate B. a mutation
C. a feedback loop D. an adaptation
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A rare disorder is caused by changes in a gene. Parents of individuals with thedisorder have only normal copies of this gene. Which of these most likely causesthis disorder?
A. mitosis B. gene splicing
C. mutation D. natural selection
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Which of the following is correctly matched with its function?
A. rRNA – contains codes to make new ribosomes
B. DNA – carries the amino acids to the ribosomes
C. tRNA – combines with proteins to make up ribosomes
D. mRNA – carries genetic codes from nucleus to the ribosomes
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A cellular process uses a strand of genetic material to produce a new strand. Partsof the strands are shown below.
Original strand ATT CAG
New strand UAA GUC
This new strand will most likely be used for
A. gene splicing B. DNA synthesis
C. crossing-over D. protein synthesis
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The genetic information for making a protein must move from the nucleus to thecytoplasm. Which of these moves this information to the cytoplasm?
A. a ribosome B. DNA C. RNA D. an amino acid
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Which of these best describes the initial change caused by a DNA mutation?
A. a change in the sequence of base pairs
B. a change in the production of enzymes
C. a change in the number of nucleosomes within a cell
D. a change in the number of hydrogen bonds between the bases
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Problem-Attic format version 4.4.277c_ 2011–2016 EducAide Software
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untitled 12/06/2016
1.Answer: B
2.Answer: B
3.Answer: D
4.Answer: D
5.Answer: D
6.Answer: A
7.Answer: B
8.Answer: D
9.Answer: A
10.Answer: A
11.Answer: C
12.Answer: D
13.Answer:
14.Answer: C
15.Answer: C
16.Answer: C
17.Answer: D
18.Answer: C
19.Answer: A
20.Answer: C
21.Answer: C
22.Answer: A
23.Answer: B
24.Answer: C
25.Answer: C
26.Answer: D
27.Answer: A
28.Answer: B
29.Answer: B
30.Answer: A
31.Answer: C
32.Answer: D
33.Answer: A
34.Answer: D
35.Answer: B
36.Answer: C
37.Answer: C
38.Answer: A
39.Answer: A
40.Answer:
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Teacher’s Key Page 2
41.Answer: D
42.Answer: B
43.Answer: C
44.Answer: D
45.Answer: D
46.Answer: C
47.Answer: A