Expert: Walter Hintz - 1/20/2010

Question
1.  The heterozygous condition in the snapdragon is an exception to Mendel's Principle of Dominance. Why?
2.  Construct Punnett squares and determine the possible offspring for the following matngs. a)RR x rr; b)Rr x Rr; c)Rr x rr
3.  Explain intermediate expression and give an example?

Answer
Hi Jon
These are homework questions. I will answer the first one but my policy is only to correct homework questions after you have answered them. I also did the second punnett square for you

1. I assume you are talking about incomplete dominance whereby to different colors result in a blend.  Incomplete domonance and co-dominance are separate mendelian principles.
2.  b
    R          r

R  RR          Rr


r  Rr          rr