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QUESTION 14 In a cross between AaBb x AaBb, roughly 50% of the offspring show the recessive...

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Biology

QUESTION 14

  1. In a cross between AaBb x AaBb, roughly 50% of the offspringshow the recessive phenotype and 50% show the dominantphenotype.  This indicates that:

    crossing over has occurred

    dominance is incomplete

    the two genes are on the same chromosome

    homozygous recessive is lethal

    QUESTION 15

  2. A man with hemophilia marries a woman who is normal and not acarrier.  Hemophilia is a recessive X-linkedallele.  Which of the following is true?

    None of the children will be carriers

    All of the boys will have the disease

    All of the girls will have the disease

    All of the girls will be carriers

    QUESTION 16

  3. An organism with 72 chromosomes in the G1 phase ofmeiosis will have how many chromosomes per gamete?

    18

    36

    9

    72

    QUESTION 18

  4. A farmer plants 1000 seeds of corn.  The offspringwere 544 tall with yellow seeds, 188 tall with green seeds, 183short with yellow seeds and 64 short with greenseeds.  What were the genotypes of the parents?

    Ttyy x TtYy

    TTYY x ttyy

    TtYy x TtYy

    TtYy x ttyy

Answer & Explanation Solved by verified expert
4.1 Ratings (494 Votes)
Ans14The two genes are on the same chromosome We can see that normally 16 combinations would have been possible out of which some new recombinants would also be produced but it is mentioned that 50 are recessive and 50 dominant meaning    See Answer
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