Answer:
adding the free nucleotides to the complementary strand of DNA
"Different substances sometimes have the same chemical formula, such as glucose and fructose, but they have different components so they act differently."
prophase is the first stage and it looks like all the chromatin condenses into chromosomes and the nucleus dissolves (there is no nucleus when you look at it)
Genotypic ratio- 1:2:1
Phenotypic ratio- 3 brown: 1 blue