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Which of the following is not studied in the field of proteomics?


A) protein-protein interactions
B) protein concentration in a cell
C) which genes give rise to which proteins
D) cellular location of particular proteins
E) chemical modifications of proteins

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What is the role of the enzyme ligase in DNA replication?


A) It unzips the double-stranded DNA.
B) It seals any breaks in the sugar-phosphate backbone.
C) It breaks the hydrogen bonds that hold the two strands of the DNA together.
D) It matches new bases to the old strand by complementary base pairing.
E) It folds the DNA into a coiled structurE.

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How similar are our genomes to those of a mouse?


A) 1%
B) 10%
C) 35%
D) 85%
E) 99%

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Organisms that have had a foreign gene inserted into them are called analytical products.

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Which of the following is the monomer unit of DNA?


A) amino acids
B) fatty acids
C) nucleotides
D) carbohydrate rings
E) steroid rings

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An individual has a genetic disorder in which their cell is not forming the correct protein structure for the cell membrane to allow entry of a particular ion.Doctors have determined that in order to help cure this person they need to alter the shape of the protein.Which type of regulation of gene expression would have the greatest chance of success?


A) posttranslational control
B) posttranscriptional control
C) transcriptional control
D) translational control
E) pretranscriptional control

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The sugar in DNA is deoxyribose while the sugar in RNA is ribose.

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Exons in mRNAs are excised and left in the nucleus.

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Which of the following is not a potential function of proteins?


A) enzymes to catalyze chemical reactions
B) neurotransmitters to aid the nervous system
C) antibodies for the immune system
D) storage form for genetic information
E) hormones to change cellular activity

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Which of the following is not a level of regulation for gene expression?


A) Pretranscriptional
B) Transcriptional
C) Posttranscriptional
D) Pretranslational
E) Translational

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What is the goal of functional genomics?


A) to determine all of the human genome sequence
B) to determine the genome sequence of other organisms useful to humans
C) to determine the purpose of our genes and how they form a human being
D) to determine how all the proteins within the cell interact
E) to carry out gene therapy for human diseases

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The "r" in "rRNA" stands for reticulum RNA because this type of RNA is associated with the endoplasmic reticulum.

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Which of the following is not a type of small RNA?


A) snoRNAs
B) tRNA
C) snRNAs
D) miRNAs
E) siRNAs

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Which of the following would be an example of pretranscriptional control?


A) The chromosomes must decondense.
B) Transcription factors help initiate transcription.
C) The mRNA is processed before it leaves the nucleus.
D) The life expectancy of the mRNA molecules vary.
E) The polypeptide product is folded to form its functional conformation.

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How many codons are there for leucine?


A) two
B) three
C) four
D) five
E) six

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What enzyme is responsible for transcribing RNA?


A) helicase
B) DNA polymerase
C) RNA polymerase
D) ligase
E) protease

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In the RNA sequence CAAUGACCAG,what will be the first amino acid incorporated?


A) alanine
B) glutamine
C) methionine
D) valine
E) glycine

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Which of the following is not a type of mRNA processing?


A) adding a cap
B) cleaving off the methionine
C) adding a tail
D) removing the introns
E) splicing

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As the RNA is being made,it is exported from the nucleus to the cytoplasm for translation.

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Which of the following is a coding RNA?


A) small RNA
B) tRNA
C) rRNA
D) mRNA
E) large RNA

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