Which of the following is not true about dna replication?

A. It must occur before a cell can divide.
B. Two complementary strands are duplicated
C. The double strand unwinds and unzips before replication
D. The new dna molecule contains two brand new strands of dna

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.