a. Give one reason why genes may not follow Mendel’s 2nd Principle. Explain clearly.

b. What is meant by the term double crossover as it relates to recombinant progeny. Explain your answer by giving the genotype of parental chromosomes and those chromosomes showing a double crossover event.

c. If the RF (recombinant frequency) between 2 genes is 0, what does this mean and explain your answer.

d. If the RF of two genes is 0.5, what are the two possibilities for the two genes? Explain clearly.