Knight followed up on attempts of English farmers to improve varieties of agriculture with his studies on garden peas. When he crossed two true-breeding varieties, he found all of the following: List the letters of all that apply.
a. All the F1 offspring had the dominant trait.
b. If both parents have the same trait, then all of their offspring will also have that trait.
c. Some F2 offspring had the dominant trait and some had the recessive trait.
d. Among the F2 offspring, more had the dominant trait and fewer had the recessive trait.