A. DNA only
B. DNA and RNA
C. Proteins only
D. DNA and Proteins
Explanation:
A chromosome is made up of proteins and DNA organized into genes. Each cell normally contains 23 pairs of chromosomes.
A. DNA only
B. DNA and RNA
C. Proteins only
D. DNA and Proteins
Explanation:
A chromosome is made up of proteins and DNA organized into genes. Each cell normally contains 23 pairs of chromosomes.