In humans, the ability to break down lactose as an adult (known as lactase persistence) is dominant (L) to the inability to break down lactose as an adult (known as lactose intolerance), which is recessive (I).
Which of the following genotype and phenotype combinations is correctly labeled?

Why should the united state be concerned about air pollution in china?

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities