Vocabulary
A trait that covers up other traits
dominant
What does the notation TT mean to genetics?
2 dominant alleles
A random change in a gene or chromosome
mutation
Genetic disorders are caused by
mutations
What do circles represent in a pedigree chart?
females
A trait that is hidden or seems to be covered up
recessive
both lowercase letters
homozygous recessive
The study of inheritance of traits
genetics
when one base on a gene is replaced with another base
substitution
What do squares represent in a pedigree chart?
males
The different forms of a gene are called
alleles
one capital letter and one lowercase letter
heterozygous
The chance that an event will take place
probabililty
when one base on a gene is added
insertion
How is a normal trait represented in a pedigree chart?
open circle or square
genetic makeup of the organisms; represented by letters
genotype
both capital letters
homozygous dominant
The passing on of traits from parents to their offspring
heredity
when one base is removed
deletion
How is a recessive trait shown in a pedigree chart?
filled in circle or square
how an organism looks or behaves
phenotype
Draw a punnett square for a cross between two heterozygous BLACK rabbits. Brown is the recessive trait. What percent of the offspring will be black? Brown?
75% Black
25% Brown
The father of genetics
Gregor Mendel
When Chromosomes to not separate properly causing a genetic disorder.
Non-Disjuction
How is a carrier shown on a pedigree chart?
half filled in circle or square