Everyone in Smurfette’s family has light blue skin, which is the dominant trait for body color in her hometown of Smurf Valley. Her family brags that they are a "true bred" or "purebred" line. She recently married a nice boy who has light yellow skin, which is a recessive trait. Create a Punnett square to show the possibilities that would result if Smurfette and her new husband had children.

All their descendants will be heterozygous for the skin color, Bb, expressing blue skin.

Explanation:

Available data:

Cross: Smurfette  x  Husband

Parentals)            BB     x     bb

Gametes)          B   B       b     b

Phenotypes) blue skin     yellow skin

Punnett square)

                       B        B

             b      Bb      Bb

             b      Bb      Bb

F1) 100% of the progeny will be heterozygous for the skin color, Bb

     100% of the progeny will be blue-skinned.

Note: Although the progeny is blue-skinned, they are not true-bred anymore.

answer; polycythemia is the correct answer;