I don't mean to be codominant, but...

Here are the solutions to today's worksheet:

1.
a) If R was the dominant allele, then the genotype Rr would be red, not pink. In this example, Rr represents a third genotype in which the dominant allele is only partly dominant, which makes it pink, a mixture of red and white.

b)
i.100 % pink flowers
ii. 50% white, 50% pink

c) rr x rr or Rr x rr

2.
a)The alleles are A, B, or o - these alleles are used to construct ALL of the other genotypes for blood type.
b)
i. 50% type AB, 50% blood type B (genotype Bo)
ii.50% type A (Ao), 50% type B (Bo)
c) The parents must have been Ao x Bo

3.
b) 4 BbTT, 4 BbTt (these are all Brown fur, Long tail), 4 bbTT, 4 bbTt (these are all black fur, Long tail),
c) 50% have this trait.

Secret word...karyotype. Look it up and be ahead of the game.

Also, click here to read some facts about the human genome.