Exercising and eating healthy foods can prevent or delay diseases. this is an example of how select one: a. genes are added or deleted based on how you treat your body b. genes determine everything about your fate c. your genes are influenced by the environment.

How many copies of each chromosomes should be present in each of the 4 final haploid versions of gamete?

Which of the following is a common danger of commercial fishing?

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.