Photosynthesis takes place in the roots of the plant
a. phosphate group, sugar, nitrogen base.
b. if it is DNA- deoxyribose sugar and if it is RNA- ribose sugar
c.Nitrogen base
d. Adenine, Gaunine, cytosine, Thymine.
Should be prophase because chromatin coils up, becoming shorter and thicker, thick enough to become visible when stained.