Which of the following is NOT part of a chromosome
A. proteins
B. cell
C. deoxyribonucleic acid
D. DNA

Wich organism obtains its energy from dead or decaying matter

Which event would lead to primary succession of a forest?

Which kind of mutation has occurred when the codon for an amino acid is changed to a stop codon? a. a silent mutation b. a missense mutation c. a frameshift mutation d. a nonsense mutation