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Bio 1240

Toria Chukwuemeka 156 questions

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Questions in this quiz (156)

  1. 1_____ are alternative forms of a gene that govern the same feature, such as eye color
    1. Aalleles
    2. Bloci
    3. Cgenes
    4. Dcoupled traits
  2. 2pea plants were ell chosen for use in Mendel's breeding experiment for all of the following reasons except
    1. Apeas show easily observed variations in a number of characteristics which as pea shape and flower color
    2. Bit is possible to completely control matings between different pea plants
    3. Cit is possible to obtain large number of progeny from any given cross
    4. Dpeas have an unusually long generation time (life span)
    5. Emany of the observable characteristics that vary in pea plants are controlled by single genes
  3. 3the separation of alleles of a gene takes place during
    1. Aanaphase of mitosis
    2. Bcytokinesis of mitosis
    3. Canaphase I of meiosis
    4. Dtelophase II of meiosis
    5. Ecytokinesis of meiosis
  4. 4which of the following represents the possible genotype(s) resulting from a cross between an individual homozygous (ZZ) and one heterozygous (Zz) individual?
    1. AZZ and Zz
    2. BZZ, Zz, and zz
    3. CZZ only
    4. DZz only
    5. Ezz only
  5. 5Mating an individual expressing a dominant phenotype, but whose genotype is unknown, with an individual expressing the corresponding recessive phenotype is an example of
    1. Aa heterozygous cross
    2. Ban F1 cross
    3. Can F2 cross
    4. Da parental cross
    5. Ea test cross
  6. 6in humans, assume that the allele for brown eyes is dominant and the allele for blue eyes is recessive. If two brown-eyed individuals have a child with blue eyes, that means
    1. Aboth parents are homozygous for brown eyes
    2. Bboth parents are heterozygous for eye color
    3. Cmultiple alleles are involved
    4. Dnone of these
  7. 7mendel crossed true-breeding plants having yellow peas with plants having green peas. the resulting plants all had yellow peas. An F2 cross resulted in 3/4 of the plants having yellow peas and 1/4 of the plants having green peas. What does this tell you about the alleles for color?
    1. Ayellow is usually the dominant color, but sometimes green can be dominant
    2. Bgreen is the dominant color
    3. Cyellow is the dominant color
    4. Dyellow is the recessive color
    5. Ethe F1 plants must have had some green peas that went unnoticed
  8. 8An organism with the genotype of AaXx can produce gametes containing ____ if the two genes are unlinked
    1. Aeither Aa or Xx
    2. Beither AX, Ax, aX, ax
    3. CAaXx
    4. DAX or ax
    5. EA,a,X,x
  9. 9why is color blindness more common in males than in females?
    1. Abecause females would have to receive one copy of the recessive color blindness gene to actually express the trait
    2. Bbecause a male only needs to receive one recessive allele from his mother to be color-blind
    3. Cbecause color blindness is an Y-linked trait
    4. Dfemales are hemizygous
  10. 10what are the possible phenotypes of the children of the children is the mother has Type O blood and the father has AB blood?
    1. Aall AB
    2. BA,B
    3. CA, AB
    4. DA, B, AB
    5. EA, B, O

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