What is a gene?
A. a structure that contains many chromosomes
B. a large molecule that performs a specific function
C. a point that joins two halves of a chromosome
D. a section of DNA that encodes a specific protein
A. a structure that contains many chromosomes
B. a large molecule that performs a specific function
C. a point that joins two halves of a chromosome
D. a section of DNA that encodes a specific protein