If a person is homozygous for the 32 allele of the ccr5 gene how many of the four daughter cells

What are levels of ecology and how can we remember them

Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit. there is a precise compatibility between the active site and the lactose molecule. specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed. reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.

Identify the area on the image where the force of attraction is the strongest.