Chapter 14 - Biology Exam

Last update by mayur on 03/27/2014
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A woman who has blood type A positive has a daughter who is type O positive and a son who is type B negative. Rh positive is a trait that shows simple dominance over Rh negative and is designated by the alleles R and r, respectively. A third gene for the MN blood group has codominant alleles M and N.


Which of the following is a possible partial genotype for the son?


A) IBIB


B) IBIA


C) ii


D) IBi


E) IAIA

Answer:

D)IBi



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  • feldman2009

    Which of the following is a possible genotype forthe mother?


    A) IAIA


    B) IBIB


    C) ii


    D) IAi


    E) IAIB


    D) IAi


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    Which of the following is a possible phenotype for the father?

    A) A negative

    B) O negative

    C) B positive

    D) AB negative

    E) Impossible to determine



    C) B positive



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    Which of the following is the probable genotype for the mother?

    A)IAIARR

    B)IAIARr

    C)IAirr

    D)IAiRr

    E)IAiRR



    D)IAiRr



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    If both children are of blood group MM, which of the following is possible?

    A) Each parent is either M or MN.

    B) Each parent must be type M.

    C) Both children are heterozygous for this gene.

    D) Neither parent can havethe N allele.

    E) The MN blood group is recessive to the ABO blood group.



    A) Each parent is either M or MN.



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    Which describes the ability of a single gene to have multiple phenotypic effects?

    A) Incomplete dominance

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    D) Epistasis

    C) Pleiotropy



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    A) Incomplete dominance

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    B) Multiple alleles



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    A) Incomplete dominance

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    A) Incomplete dominance



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    Cystic fibrosis affects the lungs, the pancreas, the digestive system, and other organs,resulting in symptoms ranging from breathing difficulties to recurrent infections. Whichof thefollowing terms best describes this?

    A) Incomplete dominance

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    Which of the following is an example of polygenic inheritance?

    A) Pink flowers in snapdragons

    B) The ABO blood groups in humans

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