The p53 protein normally promotes
a) dna repair.
b) tumor formation.
c) cell division.
d) apoptosis.

A. DNA repair

Explanation:

The p53 protein acts as a tumor remover by controlling a set of genes required for the cell division. This protein protects the genome by restricting abnormal cells to proliferate avoiding the replication of damaged DNA. The first resource the protein uses and prometes is DNA repair and if the DNA has irreparable damage,  the last resource used by this protein is apoptosis.  

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.

explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.