QUESTION 18
A theory
a. is a problem to be solved.
Ob. is the opening statement of an experiment.
Oc. is always true.
d. may be revised or replaced.

1. mendel observed that pea plants had traits, such as color, that were either “one or the other,” never something in between. discuss the correlation between mendel’s factors, what they might be, and why pea plant traits come in one form or another—e.g., gray or dark red—rather than blended.