Unit 3 Flashcards
(12 cards)
trait
a distinguishing characteristic of an organism.
inheritance
the passing of traits from generation to generation.
genetics
the study of genes
dominant trait
a genetic factor that blocks another genetic factor.
recessive trait
a genetic factor that is blocked by the presence of a dominant factor.
chromosome
DNA-containing structure that carries genetic material from one generation to another
How are chromosomes given
2 chromosomes are given from each parent.
Gene
section on a chromosome that holds genetic information for one trait.
Alleles
Alleles are different forms of a gene
Punnet Square
Shows the probability of genotypes and phenotypes of offspring from two parents.
Where is DNA
In the nucleus
How do genetic disorders get passed down
When parents pass genetic material with the gene
