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
True or false: all mutations cause problems?
False
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
What is it called when humans pair animals or plants to get more of one trait?
Selective breeding
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
Which type of reproduction will generate more variety, Sexual or Asexual?
Sexual
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 humans are changing an organisms characteristics on purpose by changing the genes
genetic engineering
How is a carrier shown on a pedigree chart?
half filled in circle or square