Child and Adolescent Psychology Chp-2 Worksheet

One-celled organism resulting from fertilization.
Cells of DNA that consist of genes.
Methods used to achieve conception through artificial means.
Chemical that carries inherited instructions for the development of all cellular forms of life.
Possessing two identical alleles for a trait.
Possessing differing alleles for a trait.
Permanent alterations in genes that produce harmful characteristics but provide the raw materials of evolution.
Genetic makeup of a person, both expressed and unexpressed characteristics.
Observable characteristics of a person.
Mechanisms that turns genes on or off and determine functions of body cells.
Chromosomal disorder mental retardation, physical signs as a downward sloping skin fold at the inner corners of the eyes.
Limitation on variance of expression of certain inherited characteristic.
Extreme overweight in relation to age, sex, height, and body type.
Characteristic disposition of approaching and reacting to situations.
Humans 22 pairs of chromosomes not related to sexual expressions.