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Mr. Oliver has curly hair, which is dominant trait (C). Mrs. Oliver also
has curly hair. Mr. Oliver has two dominant genes (Cc) and Mrs. Oliver has
one dominant gene and one recessive gene (Cc), their child might have either
combination, CC or Cc. Because there are no cc or straight hair combinations,
all their children will have curly hair.
Mr. Kim is tall, which is a dominant trait (T). Mrs. Kim is short, which
is recessive trait (t). Mr. Kim has two recessive genes (tt).
Mr. Sandez has green eyes, which is a recessive trait (b). Mrs. Sandez has
brown eyes, which is a dominant trait (B). Mr. Sandez has two recessive genes
(bb) and Mr. Sandez has two dominant genes (BB)
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