Enzymes are biological catalysts. Substances that increase the rate of chemical reactions without being used up, through lowering activation energy of the reaction. Enzymes are basically proteins folded into complicated shapes that allow small molecules to fit in them.
Hope it helps.
Microscope
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Answer: the answer is either D or B
Explanation:
Hey Rosalyn!
A nucleus in a cell, holds DNA and DNA is essential. If there is no nucleus, there is no cell. If you need further clarification, comment on my answer :)
For this you would use a punnet square (ill try my best to show it while typing)
heterozygous means different, so with the purple flower youd get the gene shown as Pp and put it into the punnet square
P p
P PP Pp
p Pp pp
given the possibilities in the punnet square the genes with at least one P is going to be purple and the genes with 2 "p"s are going to be white
so you would have
25% Dominate Homozygous Purple
50% Dominate Heterozygous Purple
25% Recessive Homozygous White