EIIIIEE.FI 1
Studyofheredityandvariation
Genenes basic unit of inheritance
Typeinherited from parents that
determinecharacteristics
Father of genetics GregorMendel
investigating transfer of characteristicsfrom generations
GENETICTRAITS HUMANS
Gene Asection of DNA that controls hereditary traits
Geneticlocusposition of alleles on chromosome
Genepool set of all genes in a population
Allelesgenesresponsibleforcontrollingdifferent versions of a trait
foundin the same locus of a homologous chromosomes
Represented
Dominant Capital Alwaysoverpower
Recessive Lowercase
Genotype represents all genes
Phenotype represents physical appearance ofgenesorganism
Homozygousalleles allele pairs are same
Heterozygous alleles allele pairs are different
dominantalleleexpressed as phenotype
recessive allele suppressed
, GENETICDIAGRAMS PUNNETSQUARES
Showhow characteristicsinherited
Generations
P1 parent generation
F1 first filialgeneration ofoffspring
F2 second filial generation of offspring
Allelesrepresented
Homozygous tall TT
Homozygous short tt
Heterozygous tall Tt
Yother predictsprobability of genotype phenotype
Phenotype tall short
EE
III all ETE t.tt
Eitate
MENDELSEXPERIMENT
Crossbetweenparents for a single
gene
GregoryMendel
1860s exeriments with breedingpeas
principles of segregation andindependent assortment
ConductedExperiments
1Transferredpollen from pure breeding tall plant to pistil of pure
breeding short pea plant
2 Collected sowed the seeds
3 TheF1generation allgrewinto tall plants
allowed to cross pollinate
4 Fageneration results showed tall short
traits don'tdisappear Recessive mayshow up in future generations
Studyofheredityandvariation
Genenes basic unit of inheritance
Typeinherited from parents that
determinecharacteristics
Father of genetics GregorMendel
investigating transfer of characteristicsfrom generations
GENETICTRAITS HUMANS
Gene Asection of DNA that controls hereditary traits
Geneticlocusposition of alleles on chromosome
Genepool set of all genes in a population
Allelesgenesresponsibleforcontrollingdifferent versions of a trait
foundin the same locus of a homologous chromosomes
Represented
Dominant Capital Alwaysoverpower
Recessive Lowercase
Genotype represents all genes
Phenotype represents physical appearance ofgenesorganism
Homozygousalleles allele pairs are same
Heterozygous alleles allele pairs are different
dominantalleleexpressed as phenotype
recessive allele suppressed
, GENETICDIAGRAMS PUNNETSQUARES
Showhow characteristicsinherited
Generations
P1 parent generation
F1 first filialgeneration ofoffspring
F2 second filial generation of offspring
Allelesrepresented
Homozygous tall TT
Homozygous short tt
Heterozygous tall Tt
Yother predictsprobability of genotype phenotype
Phenotype tall short
EE
III all ETE t.tt
Eitate
MENDELSEXPERIMENT
Crossbetweenparents for a single
gene
GregoryMendel
1860s exeriments with breedingpeas
principles of segregation andindependent assortment
ConductedExperiments
1Transferredpollen from pure breeding tall plant to pistil of pure
breeding short pea plant
2 Collected sowed the seeds
3 TheF1generation allgrewinto tall plants
allowed to cross pollinate
4 Fageneration results showed tall short
traits don'tdisappear Recessive mayshow up in future generations
