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Unit 13-Genetics

Vocabulary for Unit 13

QuestionAnswer
Genetics the branch of biology that deals with how traits are inherited
Dominant a trait that shows itself above all others
Recessive a trait that shows only if no dominant one is present
P generation the parents who have offspring
F(1) generation first filial generation, children of the parents
F(2) generation second filial generation, grandchildren of the parents
Allele a variation of a given trait
Law Of Dominance according to Mendel one allele will show itself over another
Law of Segregation according to Mendel sperm and egg will contain only one allele for a given trait
Law of Independent Assortment according to Mendel alleles for different traits go separately to gametes and do not depend on each other
Character what shows as the result of an allele
Trait something that shows in an organism
Homozygous containing two of the same alleles for a given trait
Heterozygous containing two different alleles for a given trait
Genotype the alleles you have for a given trait
Phenotype how the alleles show themselves for a given trait
test cross a genetic mating used to determine if a given organism is pure
incomplete dominance mixing of dominant and recessive alleles which results in blending
multiple alleles when more than one allele dominates for a given trait
sex linkage
amniocentesis genetic testing of a baby using amniotic fluid
karyotype looking at an individuals chromosomes for diagnosis
pedigree a way to see how traits are inherited over many generations
inbreeding mating of closely related individuals which can lead to genetic defects
Created by: mrmpellegrino
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