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Genetics Practice
14 hours ago by
Scott Sowers
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  • Slide 1
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    Genetics Practice

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  • Slide 2
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    Genotype - the combination of alleles.


    Phenotype - the physical characteristics

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  • Question 3
    30 seconds
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    Q.

    A cleft chin phenotype is dominant to no cleft. Which of the following genotypes is NOT a cleft chin?

    answer choices

    Cc

    CC

    cc

  • Question 4
    45 seconds
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    Q.

    Dimples are dominant to no dimples. Choose all of the genotypes that are dimple phenotypes.

    answer choices

    Dd

    dd

    DD

  • Question 5
    30 seconds
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    Q.

    Freckles are dominant to no freckles. A genotype that is heterozygous will have which phenotype?

    answer choices

    freckles

    no freckles

  • Slide 6
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    Homozygous Dominant (RR)


    Heterozygous (Rr)


    Homozygous Recessive (rr)

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  • Question 7
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    Q.

    Which of the following genotypes is homozygous dominant?

    answer choices

    DD

    Dd

    dd

  • Question 8
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    Q.

    Which of the following genotypes is heterozygous?

    answer choices

    Mm

    MM

    mm

  • Question 9
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    Q.

    The genotype, Pp, is _______.

    answer choices

    homozygous dominant

    heterozygous

    homozygous recessive

  • Question 10
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    Q.

    The genotype, jj, is _______.

    answer choices

    heterozygous

    homozygous dominant

    homozygous recessive

  • Question 11
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    Q.

    The genotype, KK, is

    answer choices

    heterozygous

    homozygous dominant

    homozygous recessive

  • Question 12
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    Q.

    Which of the following genotypes is homozygous recessive?

    answer choices

    Aa

    aa

    AA

  • Question 13
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    Q.

    In guinea pigs, the allele for short hair is dominant. What genotype would a heterozygous short-haired guinea pig have?

    answer choices

    Ss

    SS

    ss

  • Slide 14
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    Punnett Squares are used to predict the probability of a cross of two parents.

    Each parent has 2 alleles in their genotypes.

  • Question 15
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    Q.

    Green flowers are dominant to yellow flowers. If the parents (GG and gg) are crossed, what percentage of the offspring will have green flowers?

    answer choices

    100%

    75%

    50%

    25%

    0%

  • Question 16
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    Q.

    Green flowers are dominant to yellow flowers. If two heterozygous parents are crossed, what percentage of their offspring will be homozygous dominant?

    answer choices

    100%

    75%

    50%

    25%

    0%

  • Question 17
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    Q.

    Black fur is dominant to brown fur in dogs. A brown fur dog is crossed with a dog that is heterozygous. What percentage of the offspring will be black?

    answer choices

    100%

    75%

    50%

    25%

    0%

  • Question 18
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    Q.

    Black fur is dominant to brown fur in dogs. A brown fur dog is crossed with a dog that is homozygous dominant. What percentage of the offspring will be brown?

    answer choices

    100%

    75%

    50%

    25%

    0%

  • Slide 19
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    That's all folks.

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