Which of the following statements about genetics is true?
A. Genes are proteins that produce DNA.
B. DNA is made up of six different kinds of nucleotides.
C. Differences among organisms reflect different nucleotide sequences in their DNA.
D. Each DNA molecule is a single strand of nucleotides.
Answer:C
Which of the following statements about genetics is true?
A. Genes are proteins that produce DNA. B. DNA is made up of six different kinds of nucleotides. C. Differences among organisms reflect different nucleotide sequences in their DNA. D. Each DNA molecule is a single strand of nucleotides.