Where is the mutation for lactase persistence?

Sahelanthropus tchadensis is a fossil hominin about a million years more recent of the common ancestor of chimpanzees and humans. What distinctly human trait does Sahelanthropus have? 

What kind of melanin is particularly concentrated in the lips?

Both eumelanin and pheomelanin are derived from the amino acid:

What metabolic pathway starts with carbon dioxide and water and yields glucose and oxygen as products?

What variety of corn is choclo?

Besides the micelles of casein, there are other proteins in milk. These non-micelle proteins are called:

Popcorn has such a tough hull, it typically requires temperatures above 350 degrees Fahrenheit and pressures of ______ to pop.

What benefit does nixtamalization have over just boiling flint corn? Mark all that apply.

What happens to the casein micelle when the hydrophilic section of the kappa casein is broken off by enzymes?