THE
6. (2) Supposing shell color in a certain clam is controlled by a single gene. Using
appropriate symbols that you specify, please explain the following results by providing
four Punnett Squares. Give a short explanation of your logic as needed.
SYMBOLS THAT YOU USE HAVE TO EXPLAIN ALL FOUR OF THESE CROSSES
(these are not independent problems)
a. yellow shells X black shells produce ½ yellow offspring + ½ black offspring
b. black shells X black shells produce 100% black offspring
c. orange shells X orange shells produce 34 orange offspring + black offspring
d. yellow shells X orange shells produce 4 orange with yellow
spots + 4 orange
+yellow+4 black