genetics and heredity part iii
DESCRIPTION
Genetics and Heredity Part III. Every path has its puddle. English proverb. Today’s Agenda. Dihybrid crosses Incomplete dominance Codominance Polygenic. Dihybrid SetUp PpSs X PpSs. Dihybrid SetUp PpSs X PpSs. PS. Dihybrid SetUp PpSs X PpSs. PS. Ps. Dihybrid SetUp PpSs X PpSs. pS. - PowerPoint PPT PresentationTRANSCRIPT
Genetics and Heredity Part III
Every path has its puddle.
English proverb
Today’s Agenda
Dihybrid crosses Incomplete dominance Codominance Polygenic
Dihybrid SetUp PpSs X PpSs
Dihybrid SetUp PpSs X PpSs
PS
Dihybrid SetUp PpSs X PpSs
PS Ps
Dihybrid SetUp PpSs X PpSs
PS Ps pS
Dihybrid SetUp PpSs X PpSs
PS Ps pS ps
Dihybrid SetUp PpSs X PpSs
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
Ppss
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
Ppss
PpSS
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
Ppss
PpSS
PpSs
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
Ppss
PpSS
PpSs
ppSS
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
Ppss
PpSS
PpSs
ppSS
ppSs
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
Ppss
PpSS
PpSs
ppSS
ppSs
PpSs
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
Ppss
PpSS
PpSs
ppSS
ppSs
PpSs
Ppss
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
Ppss
PpSS
PpSs
ppSS
ppSs
PpSs
Ppss ppSs
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
Ppss
PpSS
PpSs
ppSS
ppSs
PpSs
Ppss ppSs
ppss
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
Ppss
PpSS
PpSs
ppSS
ppSs
PpSs
Ppss ppSs
ppss
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
Ppss
PpSS
PpSs
ppSS
ppSs
PpSs
Ppss ppSs
ppss
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
Ppss
PpSS
PpSs
ppSS
ppSs
PpSs
Ppss ppSs
ppss
PS Ps pS
ps
PS
Ps
pS
ps
Dihybrid SetUp PpSs X PpSs
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
Ppss
PpSS
PpSs
ppSS
ppSs
PpSs
Ppss ppSs
ppss
PS Ps pS
ps
PS
Ps
pS
ps
9:3:3:1
PPSS
PPSs
PpSS
PpSs
PPSs
PPss PpSs
Ppss
PpSS
PpSs
ppSS
ppSs
PpSs
Ppss ppSs
ppss
PS Ps pS
ps
PS
Ps
pS
ps
Obj. 9 Incomplete Dominance Definition:
A condition in which a trait in an individual is intermediate between the phenotype of the two parents because the dominant allele is unable to express itself fully.
Example of Incomplete Dominance:
Red snapdragon X white snapdragon
All offspring are pink snapdragons
Codominance
Definition: a condition in which both alleles for a gene are fully expressed.
Ex. Blood Types
Polygenic
Definition: a characterisitc of an organisms that is determined by many genes
Ex. Eye color, height, weight
Multiple Alleles
Genes with three or more alleles
Example: Blood groups A = AO, AA B = BO, BB AB = AB O = OO
Practice Problems