1. What does lipase digest ?

2. Where does digestion start?

1. This enzyme specifically digests butter fat in your food.

2. Digestion begins in the mouth, well before food reaches the stomach.

Explanation:

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.