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DNA plus its associated proteins is called a ________.


A) centromere
B) gene
C) chromatin
D) genome

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

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A common form of chemotherapy used to kill cancer cells is to administer drugs that disrupt cell division.Why might this also result in anemia,hair loss,and sores in the stomach and on the skin?

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Cells that produce the hair an...

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How could an embryonic stem cell be used to repair a severed spine?


A) Embryonic stem cells secrete proteins that repair all other cell types, including nerve cells.
B) Embryonic stem cells can grow into any other cell type, including a nerve cell.
C) Embryonic stem cells can cause any other cell type to multiply.
D) Embryonic stem cells are primarily involved with neural growth and development.

E) A) and D)
F) B) and C)

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Albinism is a recessive disorder in which the skin and hair fail to produce pigment. The following question(s) ask you to evaluate the pedigree chart shown here in which "N" is the allele for normal pigmentation and "n" is the allele for albinism. The shaded circles for Deirdre and Shannon represent the only individuals expressing the disorder. Albinism is a recessive disorder in which the skin and hair fail to produce pigment. The following question(s) ask you to evaluate the pedigree chart shown here in which N is the allele for normal pigmentation and n is the allele for albinism. The shaded circles for Deirdre and Shannon represent the only individuals expressing the disorder. -What is Deirdre's phenotype? A) nn B) Albino C) Normal D) Cannot be determined -What is Deirdre's phenotype?


A) nn
B) Albino
C) Normal
D) Cannot be determined

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

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How many chromosomes would a typical human cell have after mitosis but before cytokinesis?


A) 0
B) 23
C) 46
D) 92

E) C) and D)
F) None of the above

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Somatic cells are ________.


A) haploid (n)
B) haploid (2n)
C) diploid (n)
D) diploid (2n)

E) None of the above
F) A) and B)

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Which of the following processes generates a continuum (spectrum) of varying phenotypes?


A) Pleiotropy
B) Polygenic inheritance
C) Epistasis
D) Single-gene traits

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

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What is different between two alleles of the same gene?


A) Their location. For example, one allele might be at the end of one chromosome, while the other allele is in the middle of another chromosome.
B) The chromosome number they are on. For example, one allele might be on chromosome 12, while the other one is on chromosome 3.
C) The information they carry. For example, one allele might carry the information for blue eye pigment, while the other carries the information for brown eye pigment.
D) The cell they are in. For example, one might be in a liver cell, while the other is in a blood cell.

E) None of the above
F) All of the above

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What produces genetically unique daughter cells?


A) Meiosis
B) Mitosis
C) Both of these
D) Neither of these

E) A) and C)
F) None of the above

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When I say a flower is "purple," what have I described?


A) Its phenotype
B) Its haplotype
C) Its karyotype
D) Its genotype

E) A) and B)
F) None of the above

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When does the cell plate form during cell division?


A) In the middle of animal cell mitosis
B) In the middle of plant cell mitosis
C) At the completion of animal cell mitosis
D) At the completion of plant cell mitosis

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

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What is cytokinesis?


A) The stage of the cell cycle that happens before the cell is ready to divide its DNA
B) The stage of the cell cycle during which the cell separates its duplicated DNA
C) The stage of the cell cycle during which the cell duplicates its DNA
D) The stage of the cell cycle after the cell has divided its DNA and during which the cytoplasm gets divided

E) A) and B)
F) None of the above

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The following F₁ cross is made: BBGg × Bbgg.Which is not a possible outcome in the F₂ generation?


A) BbGg
B) BbGG
C) BBgg
D) BBGg

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

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What is the gender of the person indicated in the photograph? What is the gender of the person indicated in the photograph? A) Male B) Female C) Cannot be determined


A) Male
B) Female
C) Cannot be determined

D) None of the above
E) B) and C)

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When does crossing over occur?


A) Cytokinesis
B) Mitosis
C) Meiosis I
D) Meiosis II

E) B) and C)
F) A) and D)

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What is a karyotype?


A) A picture of all the chromosomes in one person's cell
B) A list of all the genes on our chromosomes
C) A complete sequence of our DNA
D) A list of all the mutations in our chromosomes

E) None of the above
F) C) and D)

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During which phase of the cell cycle are the chromosomes duplicated?


A) Interphase
B) Mitosis
C) Meiosis
D) Cytokinesis

E) A) and C)
F) None of the above

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How many chromosomes would be found in the karyotype of a Down syndrome female?


A) 44
B) 45
C) 46
D) 47

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

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How much of your DNA is identical to that of another person of the same sex?


A) 99.9%
B) 99.5%
C) 90%
D) 78%

E) C) and D)
F) All of the above

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If a cell had 12 chromosomes at the beginning of meiosis II,how many would each daughter cell have after the completion of meiosis II?


A) 6
B) 12
C) 18
D) 24

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

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