AP BIO CHP 14

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cuz213022
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122907
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AP BIO CHP 14
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2011-12-11 21:49:07
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AP BIO CHP 14
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AP BIO CHP 14
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  1. Mendel's law of segregatioin was nearly impossible for most biologists to understand until there was a general understanding of
    A. epistasis
    B. mitosis
    C. pleitropy
    D. meiosis
    E. dominance
    D. meiosis
    (this multiple choice question has been scrambled)
  2. A couple who are both carriers of the gene for cystic fibrosis have two children who have cystic fibrosis. What is the brobability that their next child will be phenotypically normal?
    A. 0%
    B. 75%
    C. 25%
    D. 100%
    E. 50%
    B. 75%
    (this multiple choice question has been scrambled)
  3. Roan color in cattle is the result of incomplete dominance between red and white color genes (Rr). How would one produce a herd of pure-breeding roan-colored cattle?
    A. cross roan with roan
    B. cross roan with white
    C. cross red with white
    D. it cannot be done
    E. cross roan with red
    A. cross roan with roan
    (this multiple choice question has been scrambled)
  4. Albinism is caused by a recessive autosomal allele. A man and woman, both normally pigmented, have an albino child together.The mother is now pregnant for a third time, and her doctor tells her she is carrying fraternal twins. What is the probability that both children will have normal pigmentation?
    A. 1/16
    B. 3/4
    C. 16/16
    D. 9/16
    E. 1/4
    D. 9/16
    (this multiple choice question has been scrambled)
  5. A sexually reproducing animal has two unlinked genes, one for head shape (H) and one for tail length (T). Its genotype is HhTt. Which of the following genotypes is possible in a gamete from this organism?
    A. tt
    B. HhTt
    C. T
    D. HT
    E. Hh
    D. HT
    (this multiple choice question has been scrambled)
  6. Which of the following terms is least related to the others?
    A. homozygous
    B. tetrad
    C. recessive
    D. heterozygous
    E. dominant
    B. tetrad
    (this multiple choice question has been scrambled)
  7. Two true-breeding stocks of garden peas are crossed. One parent had red, axial flowers and the other had white, teminal flowers; all F1 individuals had red, azial flowers. If 1,000 F2 offspring resulted from the cross, how many of them would you expect to have red, terminal flowers? (Assume independent assortment)
    A. 190
    B. 65
    C. 750
    D. 250
    E. 565
    A. 190
    (this multiple choice question has been scrambled)
  8. Given the parents AABBCc X AabbCc, assume simple dominance and independent assortment. What proportion of the progeny will be expected to phenotypically resemble the first parent?
    A. 1/4
    B. 1
    C. 3/8
    D. 1/8
    E. 3/4
    E. 3/4
    (this multiple choice question has been scrambled)
  9. A 1:2:1 phenotypic ratio in the F2 generation of a nonohybrid cross is a sign of
    A. polygenic inheritance
    B. pleiotropy
    C. complete dominance
    D. multiple alleles
    E. incomplete dominance
    E. incomplete dominance
    (this multiple choice question has been scrambled)
  10. A 9 purple to 7 white phenotype in sweet peas in the F2 generation is most likely due to
    A. linkage
    B. pleitropy
    C. trisomy 21
    D. crossing over
    E. epistasis
    E. epistasis
    (this multiple choice question has been scrambled)
  11. Three babies were recently mixed up in a hospital. After consideration of the data below, which of the following represent the correct baby/parent combinations?
    C. I-2,II-3,III-1
    C. I-2,II-3,III-1
  12. Which of the following is an example of polygenic inheritance?
    A. sex linkage in humans
    B. white and purple color in sweet pea
    C. pink flowers in snapdragons
    D. the ABO blood groups in humans
    E. skin pigmentation in humans
    E. skin pigmentation in humans
    (this multiple choice question has been scrambled)
  13. Hydrangea plants of the same genotype are planted in a large flower garden. Som of the plants produce blue blowers and others pink flowers. This can be best explained by
    A. the fact that a mutation has occurred
    B. environmental factors such as soil pH
    C. the allele for blue violet being completely dominant
    D. the alleles being codominant
    E. acknowledging that multiple alleles are involved
    B. environmental factors such as soil pH
    (this multiple choice question has been scrambled)
  14. Which of the following terms is least related to the others?
    A. amniocentesis
    B. chorionic villus sampling
    C. pedigree
    D. epistasis
    E. karyotype
    D. epistasis
    (this multiple choice question has been scrambled)
  15. A man is brought to court in a paternity case. He has blood type B, Rh positive. The mother has blood type B, Rh negative. Which blood type of a child would exclude the accused from paternity?
    A. None of these choices will exclude
    B. B, Rh negative
    C. O, Rh negative
    D. AB, Rh negative
    E. B, Rh positive
    D. AB, Rh negative
    (this multiple choice question has been scrambled)

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