QUESTIONS:

1. How did you determine which allele (gene) each parent would contribute to the child?

2. If each coin represents a homologous pair of chromosomes, which of Mendel's principles is        demonstrated by each flip of the coin?

3. Remembering that both original parents in this lab are heterozygous, what is the probability        that both recessive genes will be contributed to the child for a specific trait?

4. Match the following descriptions of types of crosses with the example from the        characteristics shown in this lab.

               A) codominance                 W) shape of face
                    (1 gene involved)

               B) codominance                  X) skin color
                    (2 genes involved)

              C) dominant/recessive          Y) hair color
                    (1 gene involved)

               D) dominant/recessive          Z) distance between eyes
                     (3 genes involved)

5. Is a greater variety of traits possible with:

          a) codominant or dominant/recessive crosses?                     EXPLAIN.

          b) 1 or 2 or 3 genes for a trait?                                         EXPLAIN.

6. Define the following terms.

               a) genotype           b) phenotype           c) epistasis           d) allele

7. If the same two people repeat this lab would you expect them to get the same        results?                EXPLAIN.

8. Why does each parent have to flip a coin for each trait?