Transcript Ch 10

Ch 10
10.1
10.2
10.3
17 terms to know
Phenotype
Homozygous
Dominant
P1
Allele
Genetics
Hybrid
Punnett Square
Genotype
Heterozygous
Recessive
F1
F2
Trait
Cross-Fertilization
Monohybrid cross
Testcross
10.1
 Gregor Mendel was one of the first to apply
an experimental approach to the question of
inheritance. His work eventually gave rise to
genetics, the study of heredity.
 A trait is a variation of a particular character
10.1
 To test the particulate hypothesis, Mendel
crossed true-breeding plants that had two
distinct and contrasting traits—for example,
purple or white flowers
10.2
 In the language of genetics, the
offspring of two different truebreeding varieties are called hybrids.
 Terms P1, F1, F2, etc.. see handout
10.2
 Punnett Square-see handout(or overhead)
 Genotype ratio ___:____:___
PP Pp pp
 Phenotype ratio_____ : ____
Purple: White
(dom) : (recess)
(1:2:1)
(3:1)
10.2
 Test Cross- see handout(or overhead)
10.3,10.4,10.5 skip