AP Psychology Unit 3C Terms

Question 1

The study of the relative power and limits of genetic and environmental influences on behavior

Answer 1

Behavior Genetics

Question 2

Every nongenetic influence, from prenatal nutrition to the people and things around us

Answer 2

Environment

Question 3

Threadlike structures made of DNA molecules that contain the genes

Answer 3

Chromosomes

Question 4

A complex molecule containing the genetic information that makes up the chromosomes

Answer 4

DNA

Question 5

The biochemical units of heredity that make up the chromosomes; segments of DNA capable of synthesizing a protein

Answer 5

Genes

Question 6

The complete instructions for making an organism, consisting of all the genetic material in that organism’s chromosomes

Answer 6

Genome

Question 7

Twins who develop from a single fertilized egg that splits in two; creating two genetically identical organisms

Answer 7

Identical Twins

Question 8

Twins who develop from separate fertilized eggs. They are genetically no closer than brothers and sisters, but they share a fetal environment

Answer 8

Fraternal Twins

Question 9

The proportion of variation among individuals that we can attribute to genes. It may vary in a trait, depending on the range of populations and environments studied

Answer 9

Heritability

Question 10

The interplay that occurs when the effect of one factor depends on another factor

Answer 10

Interaction

Question 11

The subfield of biology that studies the molecular structure and function of genes

Answer 11

Molecular Genetics