AP Biology Mid-Term Exam

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lap0216
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60306
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AP Biology Mid-Term Exam
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2011-01-17 16:05:59
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Biology AP Science
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This is for Ms. Kelly's AP Biology class.
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  1. The pedigree chart below is for a family, some of whose members exhibit the recessive trait, wooly hair. Affected individuals are indicated by an open square or circle. Use the chart to answer the following question.

    What is the likelihood that the progeny of D-3 and D-4 will have wooly hair?

    a. 0%
    b. 25%
    c. 50%
    d. 75%
    e. 100%
    C
  2. The pedigree chart below is for a family, some of whose members exhibit the recessive trait, wooly hair. Affected individuals are indicated by an open square or circle. Use the chart to answer the following question.

    What is the genotype of individual B-5?

    a. WW
    b. Ww
    c. ww
    d. WW or ww
    e. ww or Ww
    C
  3. An achondroplastic male dwarf with normal vision marries a color-blind woman of normal height. The man's father was six-feet tall, and both the woman's parents were of average height. Achondroplastic dwarfism is autosomal dominant, and red-green color blindness is X-linked recessive. They have a daughter who is a dwarf with normal color vision. What is the probability that she is heterozygous for both genes?

    a. 0
    b. 0.25
    c. 0.50
    d. 0.75
    e. 1.00
    E
  4. An achondroplastic male dwarf with normal vision marries a color-blind woman of normal height. The man's father was six-feet tall, and both the woman's parents were of average height. Achondroplastic dwarfism is autosomal dominant, and red-green color blindness is X-linked recessive. How many of their daughters might be expected to be color-blind dwarfs?

    a. all
    b. none
    c. half
    d. one out of four
    e. three out of four
    B
  5. An achondroplastic male dwarf with normal vision marries a color-blind woman of normal height. The man's father was six-feet tall, and both the woman's parents were of average height. Achondroplastic dwarfism is autosomal dominant, and red-green color blindness is X-linked recessive. How many of their sons would be color-blind and of normal height?

    a. all
    b. none
    c. half
    d. one out of four
    e. three out of four
    C
  6. The dynamics of any ecosystem include the following major processes:

    a. the flow of energy from sunlight to producers
    b. the flow of energy from sunlight to producers and then to consumers
    c. the recycling of chemical nutrients
    d. the flow of energy to producers and the recycling of nutrients
    e. the flow of energy from sunlight to producers and then to consumers, and the recycling of chemical nutrients
    E
  7. The signal transduction pathway in animal cells that use epinephrine

    a. activates the breakdown of glycogen in liver and skeletal muscle cells.
    b. is a classic example of synaptic signaling.
    c. operates independently of hormone receptors on target cells.
    d. A and B only
    e. A, B, and C
    A
  8. If the liver cells of an animal have 24 chromosomes, how many chromosomes do its sperm cells have?

    a. 6
    b. 12
    c. 24
    d. 48
    e. 64
    B
  9. Which of the following would be inhibited by a drug that specifically blocks the addition of phosphate groups to proteins?

    a. G-protein-linked receptor signaling
    b. ligand-gated ion channel signaling
    c. adenylyl cyclase activity
    d. phosphatase activity
    e. receptor tyrosine kinase activity
    E
  10. Which of the following statements about Mendel's breeding experiments is correct?

    a. None of the parental (P) plants were true-breeding.
    b. All of the F2 progeny showed a phenotype that was intermediate between the two parental (P) phenotypes.
    c. Half of the F1 progeny had the same phenotype as one of the parental (P) plants, and the other half had the same phenotype as the other parent.
    d. All of the F1 progeny resembled one of the parental (P) plants, but only some of the F2 progeny did.
    e. none of the above Use the diagram and description below to answer the following question.
    D
  11. In a particular plant, leaf color is controlled by gene D. Plants with the dominant allele D have dark green leaves, and plants with the homozygous recessive dd genotype have light green leaves. A true-breeding dark-leaved plant is crossed with a light-leaved one, and the F1 offspring is allowed to self-pollinate. The predicted outcome of this cross is diagrammed in the Punnett square shown below, where 1, 2, 3, and 4 represent the genotypes corresponding to each box within the square.

    Which of the boxes marked 1-4 correspond to plants with dark leaves?

    a. 1 only
    b. 1 and 2
    c. 2 and 3
    d. 4 only
    e. 1, 2, and 3
    E
  12. In a particular plant, leaf color is controlled by gene D. Plants with the dominant allele D have dark green leaves, and plants with the homozygous recessive dd genotype have light green leaves. A true-breeding dark-leaved plant is crossed with a light-leaved one, and the F1 offspring is allowed to self-pollinate. The predicted outcome of this cross is diagrammed in the Punnett square shown below, where 1, 2, 3, and 4 represent the genotypes corresponding to each box within the square.

    Which of the plants will be true-breeding?

    a. 1 and 4
    b. 2 and 3
    c. 1-4
    d. 1 only
    e. None
    A
  13. In a particular plant, leaf color is controlled by gene D. Plants with the dominant allele D have dark green leaves, and plants with the homozygous recessive dd genotype have light green leaves. A true-breeding dark-leaved plant is crossed with a light-leaved one, and the F1 offspring is allowed to self-pollinate. The predicted outcome of this cross is diagrammed in the Punnett square shown below, where 1, 2, 3, and 4 represent the genotypes corresponding to each box within the square.

    Which of the boxes correspond to plants with a heterozygous genotype?

    a. 1
    b. 1 and 2
    c. 1, 2, and 3
    d. 2 and 3
    e. 2, 3, and 4
    D
  14. A cross between homozygous purple-flowered and homozygous white-flowered pea plants results in offspring with purple flowers. This demonstrates
    a. the blending model of genetics.
    b. true-breeding.
    c. dominance.
    d. a dihybrid cross.
    e. the mistakes made by Mendel.
    C
  15. The following question consists of five phrases or sentences related to the control of cell division. Select the term below that is most closely related to it.

    A. PDGF
    B. MPF
    C. protein kinase
    D. cyclin
    E. Cdk

    triggers the cell's passage past the G2 checkpoint into mitosis

    a. A
    b. B
    c. C
    d. D
    e. E
    B
  16. The following question consists of five phrases or sentences related to the control of cell division. Select the term below that is most closely related to it.

    A. PDGF
    B. MPF
    C. protein kinase
    D. cyclin
    E. Cdk

    a general term for enzymes that activate or inactivate other proteins by phosphorylating them
    a. A
    b. B
    c. C
    d. D
    e. E
    C
  17. The following question consists of five phrases or sentences related to the control of cell division. Select the term below that is most closely related to it.

    A. PDGF
    B. MPF
    C. protein kinase
    D. cyclin
    E. Cdk

    a protein synthesized at specific times during the cell cycle that associates with a kinase to form a catalytically active complex

    a. A
    b. B
    c. C
    d. D
    e. E
    D
  18. The following is a map of four genes on a chromosome:

    Between which two genes would you expect the highest frequency of recombination?

    a. A and W
    b. W and E
    c. E and G
    d. A and E
    e. A and G
    E
  19. What is a karyotype?

    a. the set of unique physical characteristics that define an individual
    b. the collection of all the mutations present within a genome
    c. a unique combination of chromosomes found in a gamete
    d. a system of classifying cell nuclei
    e. a display of every pair of homologous chromosomes within a cell, organized according to size and shape
    E
  20. A cell divides to produce two daughter cells that are genetically identical.

    A. The statement is true for mitosis only.
    B. The statement is true for meiosis I only.
    C. The statement is true for meiosis II only.
    D. The statement is true for mitosis and meiosis I.
    E. The statement is true for mitosis and meiosis II.
    A
  21. As a result of photosynthesis, plants release ____ into the atmosphere.

    a. methane
    b. carbon dioxide
    c. water
    d. minerals
    e. oxygen
    E
  22. Prokaryotic and eukaryotic cells generally have which of the following features in common?

    a. a membrane-bounded nucleus
    b. a cell wall made of cellulose
    c. ribosomes
    d. flagella or cilia that contain microtubules
    e. linear chromosomes made of DNA and protein
    C
  23. What is genetic cross between an individual showing a dominant phenotype (but of unknown genotype) and a homozygous recessive individual called?

    a. a self-cross
    b. a testcross
    c. a hybrid cross
    d. an F1 cross
    e. a dihybrid cross
    B
  24. The human X and Y chromosomes are

    a. both present in every somatic cell of males and females alike.
    b. of approximately equal size.
    c. almost entirely homologous, despite their different names.
    d. called "sex chromosomes" because they determine an individual's sex.
    e. all of the above
    D
  25. When Thomas Hunt Morgan crossed his red-eyed F1 generation flies to each other, the F2 generation included both red- and white-eyed flies. Remarkably, all the white-eyed flies were male. What was the explanation for this result?

    a. The involved gene was on the X chromosome.
    b. The involved gene was on the Y chromosome.
    c. The involved gene was on an autosome.
    d. Other male-specific factors influence eye color in flies.
    e. Other female-specific factors influence eye color in flies.
    A
  26. A Barr body is normally found in the nucleus of which kind of human cell?

    a. unfertilized egg cells only
    b. sperm cells only
    c. somatic cells of a female only
    d. somatic cells of a male only
    e. both male and female somatic cells
    C
  27. If cells in the process of dividing are subjected to colchicine, a drug that interferes with the functioning of the spindle apparatus, at which stage will mitosis be arrested?

    a. anaphase
    b. prophase
    c. telophase
    d. metaphase
    e. interphase
    D
  28. Homologous chromosomes synapse and crossing over occurs.

    A. The statement is true for mitosis only.
    B. The statement is true for meiosis I only.
    C. The statement is true for meiosis II only.
    D. The statement is true for mitosis and meiosis I.
    E. The statement is true for mitosis and meiosis II.
    B
  29. From the perspective of the cell receiving the message, the three stages of cell signaling are

    a. the paracrine, local, and synaptic stages.
    b. signal reception, signal transduction, and cellular response.
    c. signal reception, nucleus disintegration, and new cell generation.
    d. the alpha, beta, and gamma stages.
    e. signal reception, cellular response, and cell division.
    B
  30. A water sample from a hot thermal vent contained a single-celled organism that lacked a nucleus. What is its most likely classification?

    a. domain Eukarya
    b. domain Archaea
    c. kingdom Animalia
    d. kingdom Protista
    e. kingdom Fungi
    B
  31. Centromeres uncouple and chromatids are separated from each other.

    A. The statement is true for mitosis only.
    B. The statement is true for meiosis I only.
    C. The statement is true for meiosis II only.
    D. The statement is true for mitosis and meiosis I.
    E. The statement is true for mitosis and meiosis II.
    E
  32. The chemical reactions within cells are regulated by organic catalysts called

    a. feedback activators.
    b. feedback inhibitors.
    c. enzymes.
    d. metabolites.
    e. nutrients.
    C
  33. Use the data in the table below to answer the following question.

    The data were obtained from a study of the length of time spent in each phase of the cell cycle by cells of three eukaryotic organisms designated beta, delta, and gamma.

    The best conclusion concerning delta is that the cells

    a. contain no DNA.
    b. contain no RNA.
    c. contain only one chromosome that is very short.
    d. are actually in the G0 phase.
    e. divide in the G1 phase.
    D
  34. Use the data in the table below to answer the following question.

    The data were obtained from a study of the length of time spent in each phase of the cell cycle by cells of three eukaryotic organisms designated beta, delta, and gamma.

    Of the following, the best conclusion concerning the difference between the S phases for beta and gamma is that

    a. gamma contains more DNA than beta.
    b. beta and gamma contain the same amount of DNA.
    c. beta contains more RNA than gamma.
    d. gamma contains 48 times more DNA and RNA than beta.
    e. beta is a plant cell and gamma is an animal cell.
    A
  35. Red-green color blindness is a sex-linked recessive trait in humans. Two people with normal color vision have a color-blind son. What are the genotypes of the parents?

    a. XcXc and XcY
    b. XcXc and XCY
    c. XCXC and XcY
    d. XCXC and XCY
    e. XCXc and XCY
    E

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