Question

What is a gene?

A-the different forms of a trait

B-a segment of DNA that is the basic unit of heredity

C-the appearance of characteristics that are seen in an organism

D- an organism allele combination

Answer 1

B: a segment of DNA that is the basic unit of heredity

Step-by-step explanation:

Answer 2

step by step

Step-by-step explanation:

B is the answer