| A | B |
|---|
| cytosine | a nitrogenous base found in DNA and RNA which is the complement of guanine |
| Darwinism | the theory about evolution specifically by natural selection |
| data | information collected through scientific research and inquiry |
| deletion | a break in a chromosome during mitosis or meiosis |
| deoxyribose | the five carbon sugar that is part of DNA |
| dependent variables | the conditions that will change as a result of the manipulation of the independent variable |
| diffusion | the movement of molecules from an area of high concentration to an area of lower concentration |
| dihybrid cross | a genetic cross used to study two traits simultaneously |
| diploid number | the total number of paired chromosomes found in each somatic cell: in humans, = 46 |
| diversity | the number of species in a particular community or habitat |
| DNA fingerprinting | a technique using a pattern produced when DNA fragments are separated based on size by gel electrophoresis |
| dominant | the property of one of a pair of heterozygous alleles or traits that suppresses expression of the other |
| double helix | is the twisted ladder shape of DNA |
| ecology | the interrelationships of living organisms and their environments |
| electron transport chain | a series of steps in aerobic respiration, where products of the Krebs cycle transfer electrons, which yield the majority of the ATP produced in aerobic respiration |
