What is a gene??
A. A chromosome that determines gender
B. A piece of DNA that controls trait
C. A group of chromosomes
D. A specific form of an allele
(I'm taking a quiz on APEX and I really need an answer ASAP! :))

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.