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All of the following participate in DNA replication except __________.


A) DNA
B) ribosomes
C) DNA ligase
D) DNA helicase
E) DNA polymerase

F) A) and B)
G) A) and C)

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Which of the following is the template for transcription?


A) The molecule that carries codons
B) The molecule that carries anticodons
C) The molecule that carries base triplets
D) The molecule that carries amino acids
E) The molecule that carries tRNA

F) A) and E)
G) All of the above

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Anticodons,codons,and base triplets correspond to __________ respectively.


A) tRNA, DNA, and mRNA
B) DNA, tRNA, and mRNA
C) tRNA, mRNA, and DNA
D) DNA, RNA, and pre-mRNA
E) RNA, DNA, and pre-mRNA

F) A) and E)
G) B) and C)

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Which of these processes occurs during a cell's first gap (G1) phase?


A) DNA is semiconservatively replicated.
B) The nuclear envelope breaks down.
C) The cell synthesizes the enzymes that control mitosis.
D) The cell synthesizes proteins and grows.
E) The chromatin condenses into visible chromosomes.

F) A) and B)
G) C) and E)

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What is all of the DNA in a set of 23 chromosomes referred to as?


A) A centromere
B) A chromatid
C) The karyotype
D) The phenotype
E) The genome

F) All of the above
G) A) and B)

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Naked DNA is called chromatin.

A) True
B) False

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There are three codons that do not code for any amino acid.

A) True
B) False

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The G1,S,and G2 phases of the cell cycle are collectively called __________.


A) interphase
B) telophase
C) cytokinesis
D) prophase
E) anaphase

F) B) and E)
G) A) and D)

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The enzyme RNA polymerase participates in translation.

A) True
B) False

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The stage at which chromosomes aggregate along the equator of a cell is __________.


A) prophase
B) metaphase
C) anaphase
D) telophase
E) interphase

F) A) and E)
G) All of the above

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Cytokinesis overlaps with which phase of mitosis?


A) The S phase
B) Telophase
C) Metaphase
D) Prophase
E) Interphase

F) A) and D)
G) A) and E)

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What is the product of translation?


A) A newly synthesized amino acid
B) A newly synthesized polypeptide
C) A newly synthesized nucleic acid
D) An mRNA
E) A tRNA

F) C) and E)
G) B) and E)

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DNA never migrates from the nucleus to the cytoplasm to participate directly in protein synthesis.

A) True
B) False

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Eye color is a normal polygenic trait.

A) True
B) False

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Which of the following omits some stage(s) of the cell cycle?


A) G1, S, G2, mitosis
B) Interphase, mitosis
C) G1, DNA replication, G2, mitosis
D) Prophase, metaphase, anaphase, telophase, cytokinesis
E) Interphase, prophase, metaphase, anaphase, telophase, cytokinesis

F) C) and D)
G) B) and E)

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A mutation is __________.


A) a change in size or shape of a cell
B) a beneficial change in DNA structure
C) a harmful change in DNA structure
D) a neutral change in DNA structure
E) a change in DNA structure that might be beneficial, harmful, or neutral

F) C) and D)
G) A) and E)

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Sister chromatids are pulled to opposite poles of a cell during __________ of the cell cycle.


A) the S phase
B) the G2 phase
C) prophase
D) metaphase
E) anaphase

F) A) and E)
G) A) and B)

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Hemophilia is caused by a sex-linked recessive allele.This means that __________.


A) women can be carriers but cannot get hemophilia
B) the gene is found on the Y chromosome
C) a man can give the allele to his son but not to his daughter
D) a son who has hemophilia inherited the allele from his mother
E) a son who has hemophilia inherited the allele from his father

F) D) and E)
G) B) and D)

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Since there are no genes coding for carbohydrates,nucleic acids,or lipids,how do cells produce them?


A) Enzymes encoded by genes synthesize these products.
B) Cells are born with all the products they need.
C) Cells absorb these products by endocytosis.
D) Cells import these products from older cells.
E) Cells can produce carbohydrates, nucleic acids, and lipids out of proteins.

F) B) and C)
G) None of the above

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Copying genetic information from DNA into RNA is called __________; using the information contained in mRNA to make a polypeptide is called __________.


A) transcription; translation
B) translation; transcription
C) DNA replication; translation
D) DNA duplication; transcription
E) DNA translation; RNA transcription

F) A) and C)
G) A) and E)

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