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Other Patterns of Inheritance

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Other Patterns of Inheritance Practice Problems 1. In snapdragon flowers RR = red flowers, WW = white flowers, and RW = pink flowers. Complete the Punnett Square for ... – PowerPoint PPT presentation

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Title: Other Patterns of Inheritance


1
Other Patterns of Inheritance
  • Practice Problems

2
1.
  • In snapdragon flowers RR red flowers, WW
    white flowers, and RW pink flowers.
  • Complete the Punnett Square for the following
    cross.
  • (RR x WW)




Genotype Phenotype



3
2.


  • In an iris flower, purple (P) is incompletely
    dominant over white (W).
  • What would be the results of a cross if both the
    parents were pale lavender (PW).

Genotype Phenotype



4
3.


  • A woman with type O blood and a man who is type
    AB are expecting a child.
  • What are the possible blood types of the child?

Genotype Phenotype



5
4.



Genotype Phenotype



  • What are the possible blood types of a child
    whose parents are both heterozygous for B blood
    type?

6
5.



Genotype Phenotype



  • Jill is blood type O.
  • She has two older brothers, with blood types A
    B.
  • What are the genotypes of her parents with
    respect to this trait?

7
6.


  • In humans, wavy hair (CS) results from the
    codominant situation of curly hair (C) and
    straight (S).
  • What are the possible results if a curly-haired
    man and a wavy-haired woman have children?

Genotype Phenotype



8
7.


  • In crocus flowers, white (W) and purple (P)
    colors are codominant, and result in a purple and
    white striped flower when both alleles are
    present.
  • What are the possible results from the
    cross-pollination of two striped crocuses?

Genotype Phenotype



9
8.



Genotype Phenotype


  • Cattle can be red (RR all red hairs), white (WW
    all white hairs), or roan (RW distinct red
    and white hairs together).
  • Predict the phenotypic ratios of offspring when a
    homozygous white cow is crossed with a roan bull.
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