Chapter 4 - Genes, Evolution, and Behavior Flashcards
Define Behavior
An organism’s actions in response to some stimulus
Define Evolution
A change in heritable traits in a population over time
Define Natural Selection
The process by which evolution occurs
What is a Gene?
The basic unit of heredity
What does a gene do?
Pass traits from parent to offspring
What are the names of the base pairs (A/T) and (G/C)
(Adenine/Thymine) and (Guanine/Cytosine)
What does the order of the base pairs do?
Store information
Define Genome
The complete set of genetic material for an organism
Define DNA (DeoxyRibonucleic Acid)
Chemical substance containing nucleotides
Define Gene
The units of hereditary transmission (genetic blueprints)
Define Chromosomes
Strands of DNA wound around each other in a double-helix configuration
What is a Genotype?
Specific genetic makeup
What is a Phenotype?
The observable characteristics due to the genetic makeup
In somatic cells, how many chromosomes do humans have?
46 chromosomes (23 form Mom, 23 from Dad)
What is the Genetic Relatedness between a child and their parent?
50%
