ANTHRO 101 Lecture Notes - Lecture 11: East Los Angeles College, Fucus, Structural Gene
Document Summary
Lactose , broken down by lactase enzyme into glucose + galactose. Regulatory gene turns off the structural gene around age or 5 or so. Vasodilation and vasoconstriction: the process is the opposite of vasoconstriction, which is the narrowing of blood vessels. When blood vessels dilate, the flow of blood is increased due to a decrease in vascular resistance. Therefore, dilation of arterial blood vessels (mainly the arterioles) decreases blood pressure. Bergmann"s rule: is an ecogeographical rule that states that within a broadly distributed taxonomic clade, populations and species of larger size are found in colder environments, and species of smaller size are found in warmer regions. A discrete biological type within a species. A discrete group of populations that share biologically based characteristics because of common ancestry. Craniometry (big head = smart, little head = stupid) One genotype may be associated with many phenotype. Two twins, one remains in africa, one goes to a rich family.
