- Use Punnett Squares to figure out the genotypic and phenotypic ratios for the following crosses:
- Simple Dominance
                                              i.    Tall pea plants are dominant to short pea plants. Cross a heterozygous tall plant with a homozygous short plant.
- Complete and Incomplete Dominance
                                              i.    Parrots can be pure-bred red (RR), pure-bred blue (BB) or purple (RB). Can two purple parrots have blue offspring? Can they have red offspring? Use a Punnett Square to justify your answer.
1.    Is this incomplete dominance or codominance?
                                            ii.    Dogs can be black (BB), white (WW) or black and white spots (BW). Cross a pure-bred white dog with a dog with black and white spots?
1.    Is this incomplete dominance or codominance?
- Multiple Alleles
                                              i.    Cross a person with type AB blood with a person with type O blood? Can any of their children have the same blood type as one of their parents?
- Sex-linked Traits
                                              i.    Colorblindness (b) is a recessive sex linked trait on the X chromosome. If a man and a woman, both with normal vision have a baby boy who is colorblind, which parent did the child inherit the gene from? How do you know?
Answers
Status NEW
Posted 26 Apr 2017 03:04 AM
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