INCOMPLETE DOMINANCE AND CODOMINANCE 1 INCOMPLETE DOMINANCE Neither
![INCOMPLETE DOMINANCE AND CODOMINANCE 1 INCOMPLETE DOMINANCE AND CODOMINANCE 1](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-1.jpg)
![INCOMPLETE DOMINANCE Neither allele has “complete” dominance over the other; heterozygous phenotype is a INCOMPLETE DOMINANCE Neither allele has “complete” dominance over the other; heterozygous phenotype is a](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-2.jpg)
![INCOMPLETE DOMINANCE Cross a red (RR) snapdragon with a White (WW) snapdragon. Give the INCOMPLETE DOMINANCE Cross a red (RR) snapdragon with a White (WW) snapdragon. Give the](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-3.jpg)
![INCOMPLETE DOMINANCE Key: R = red W = white Cross: RR x WW Genotypic INCOMPLETE DOMINANCE Key: R = red W = white Cross: RR x WW Genotypic](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-4.jpg)
![INCOMPLETE DOMINANCE Practice: Cross a pink snapdragon with a red snapdragon. Give the expected INCOMPLETE DOMINANCE Practice: Cross a pink snapdragon with a red snapdragon. Give the expected](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-5.jpg)
![INCOMPLETE DOMINANCE Practice: Cross a pink snapdragon with a red snapdragon. Give the expected INCOMPLETE DOMINANCE Practice: Cross a pink snapdragon with a red snapdragon. Give the expected](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-6.jpg)
![CODOMINANCE Codominance – Both alleles share dominance and are always expressed if present. � CODOMINANCE Codominance – Both alleles share dominance and are always expressed if present. �](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-7.jpg)
![CODOMINANCE Cross a black (B) chicken with a white (W) chicken. Give the genotypic CODOMINANCE Cross a black (B) chicken with a white (W) chicken. Give the genotypic](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-8.jpg)
![CODOMINANCE Key: B = black W = white Cross: BB x WW W B CODOMINANCE Key: B = black W = white Cross: BB x WW W B](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-9.jpg)
![CODOMINANCE Practice: Cross two black and white feathered chickens. Give the expected phenotypic and CODOMINANCE Practice: Cross two black and white feathered chickens. Give the expected phenotypic and](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-10.jpg)
![CODOMINANCE Practice: Cross two black and white feathered chickens. Give the expected phenotypic and CODOMINANCE Practice: Cross two black and white feathered chickens. Give the expected phenotypic and](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-11.jpg)
![LAW OF INDEPENDENT ASSORTMENT Alleles for different traits are distributed to sex cells (& LAW OF INDEPENDENT ASSORTMENT Alleles for different traits are distributed to sex cells (&](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-12.jpg)
![DIHYBRID CROSS Tracks the inheritance of two traits. Ex. Seed shape and seed color DIHYBRID CROSS Tracks the inheritance of two traits. Ex. Seed shape and seed color](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-13.jpg)
![DIHYBRID CROSS Traits: Seed shape & Seed color � Alleles: R round r wrinkled DIHYBRID CROSS Traits: Seed shape & Seed color � Alleles: R round r wrinkled](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-14.jpg)
![DIHYBRID CROSS Gametes are placed in the punnett square RY Ry r. Y ry DIHYBRID CROSS Gametes are placed in the punnett square RY Ry r. Y ry](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-15.jpg)
![DIHYBRID CROSS Put R’s back together and Y’s back together RY RY Ry r. DIHYBRID CROSS Put R’s back together and Y’s back together RY RY Ry r.](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-16.jpg)
![DIHYBRID CROSS RY Ry r. Y ry RY RRYy Rr. YY Rr. Yy Ry DIHYBRID CROSS RY Ry r. Y ry RY RRYy Rr. YY Rr. Yy Ry](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-17.jpg)
![DIHYBRID CROSS RY Ry r. Y ry RY RRYy Rr. YY Rr. Yy Ry DIHYBRID CROSS RY Ry r. Y ry RY RRYy Rr. YY Rr. Yy Ry](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-18.jpg)
![DIHYBRID PRACTICE � If a pea plant with genotype RRYy (round, yellow peas) is DIHYBRID PRACTICE � If a pea plant with genotype RRYy (round, yellow peas) is](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-19.jpg)
![OTHER PATTERNS OF INHERITANCE 20 OTHER PATTERNS OF INHERITANCE 20](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-20.jpg)
![POLYGENIC TRAITS � � “Many genes” ; Many traits are controlled by more than POLYGENIC TRAITS � � “Many genes” ; Many traits are controlled by more than](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-21.jpg)
![MULTIPLE ALLELES Genes that have more than 2 alleles � Ex: blood group. � MULTIPLE ALLELES Genes that have more than 2 alleles � Ex: blood group. �](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-22.jpg)
- Slides: 22
![INCOMPLETE DOMINANCE AND CODOMINANCE 1 INCOMPLETE DOMINANCE AND CODOMINANCE 1](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-1.jpg)
INCOMPLETE DOMINANCE AND CODOMINANCE 1
![INCOMPLETE DOMINANCE Neither allele has complete dominance over the other heterozygous phenotype is a INCOMPLETE DOMINANCE Neither allele has “complete” dominance over the other; heterozygous phenotype is a](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-2.jpg)
INCOMPLETE DOMINANCE Neither allele has “complete” dominance over the other; heterozygous phenotype is a blend of the 2 homozygous phenotypes � Ex: snapdragons R = red W = white RW = pink � 2
![INCOMPLETE DOMINANCE Cross a red RR snapdragon with a White WW snapdragon Give the INCOMPLETE DOMINANCE Cross a red (RR) snapdragon with a White (WW) snapdragon. Give the](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-3.jpg)
INCOMPLETE DOMINANCE Cross a red (RR) snapdragon with a White (WW) snapdragon. Give the genotypic and phenotypic ratios. Key: R = red flower W = white flower Cross: RR x WW Genotypic Ratio: W W R Phenotypic Ratio: R Answer on next slide… 3
![INCOMPLETE DOMINANCE Key R red W white Cross RR x WW Genotypic INCOMPLETE DOMINANCE Key: R = red W = white Cross: RR x WW Genotypic](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-4.jpg)
INCOMPLETE DOMINANCE Key: R = red W = white Cross: RR x WW Genotypic Ratio: W W 0 RR: 4 RW: 0 WW R RW RW Phenotypic Ratio: 0 Red: 4 Pink: 0 White 4
![INCOMPLETE DOMINANCE Practice Cross a pink snapdragon with a red snapdragon Give the expected INCOMPLETE DOMINANCE Practice: Cross a pink snapdragon with a red snapdragon. Give the expected](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-5.jpg)
INCOMPLETE DOMINANCE Practice: Cross a pink snapdragon with a red snapdragon. Give the expected phenotypic and genotypic ratios. Key: _________ Cross: _________ Genotypic Ratio: ____________ Phenotypic Ratio: ____________ 5
![INCOMPLETE DOMINANCE Practice Cross a pink snapdragon with a red snapdragon Give the expected INCOMPLETE DOMINANCE Practice: Cross a pink snapdragon with a red snapdragon. Give the expected](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-6.jpg)
INCOMPLETE DOMINANCE Practice: Cross a pink snapdragon with a red snapdragon. Give the expected phenotypic and genotypic ratios. R Key: R = red W = white RW = pink Cross: _RW x RR__ R R RR RR W RW RW Genotypic Ratio: __2 RR: 2 RW: 0 WW__ Phenotypic Ratio: __2 red: 2 pink: 0 white_ 6
![CODOMINANCE Codominance Both alleles share dominance and are always expressed if present CODOMINANCE Codominance – Both alleles share dominance and are always expressed if present. �](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-7.jpg)
CODOMINANCE Codominance – Both alleles share dominance and are always expressed if present. � Ex: In chickens � B = black feathers W = white feathers BW = black AND white feathers 7
![CODOMINANCE Cross a black B chicken with a white W chicken Give the genotypic CODOMINANCE Cross a black (B) chicken with a white (W) chicken. Give the genotypic](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-8.jpg)
CODOMINANCE Cross a black (B) chicken with a white (W) chicken. Give the genotypic and phenotypic ratios. Key: B = black feathers W = white feathers Cross: BB x WW W W Genotypic Ratio: B Phenotypic Ratio: B Answer on next slide… 8
![CODOMINANCE Key B black W white Cross BB x WW W B CODOMINANCE Key: B = black W = white Cross: BB x WW W B](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-9.jpg)
CODOMINANCE Key: B = black W = white Cross: BB x WW W B B W BW BW Genotypic Ratio: 0 BB: 4 BW: 0 WW Phenotypic Ratio: 0 black: 4 black and white: 0 white 9
![CODOMINANCE Practice Cross two black and white feathered chickens Give the expected phenotypic and CODOMINANCE Practice: Cross two black and white feathered chickens. Give the expected phenotypic and](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-10.jpg)
CODOMINANCE Practice: Cross two black and white feathered chickens. Give the expected phenotypic and genotypic ratios of the offspring. Key: _________ Cross: _________ Genotypic Ratio: ____________ Phenotypic Ratio: ____________ 10
![CODOMINANCE Practice Cross two black and white feathered chickens Give the expected phenotypic and CODOMINANCE Practice: Cross two black and white feathered chickens. Give the expected phenotypic and](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-11.jpg)
CODOMINANCE Practice: Cross two black and white feathered chickens. Give the expected phenotypic and genotypic ratios of the offspring. B Key: B = black W = white BW = black and white Cross: _BW x BW__ W B BB BW W W Genotypic Ratio: __1 BB: 2 BW: 1 WW_ Phenotypic Ratio: _1 black: 2 black and white: 1 white_ 11
![LAW OF INDEPENDENT ASSORTMENT Alleles for different traits are distributed to sex cells LAW OF INDEPENDENT ASSORTMENT Alleles for different traits are distributed to sex cells (&](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-12.jpg)
LAW OF INDEPENDENT ASSORTMENT Alleles for different traits are distributed to sex cells (& offspring) independently of one another. � This law can be illustrated using dihybrid crosses. � 12
![DIHYBRID CROSS Tracks the inheritance of two traits Ex Seed shape and seed color DIHYBRID CROSS Tracks the inheritance of two traits. Ex. Seed shape and seed color](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-13.jpg)
DIHYBRID CROSS Tracks the inheritance of two traits. Ex. Seed shape and seed color � Each pair of alleles segregates independently during gamete formation � 13
![DIHYBRID CROSS Traits Seed shape Seed color Alleles R round r wrinkled DIHYBRID CROSS Traits: Seed shape & Seed color � Alleles: R round r wrinkled](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-14.jpg)
DIHYBRID CROSS Traits: Seed shape & Seed color � Alleles: R round r wrinkled Y yellow y green � � Rr. Yy RY Ry r. Y ry x Rr. Yy RY Ry r. Y ry All possible gamete combinations 14
![DIHYBRID CROSS Gametes are placed in the punnett square RY Ry r Y ry DIHYBRID CROSS Gametes are placed in the punnett square RY Ry r. Y ry](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-15.jpg)
DIHYBRID CROSS Gametes are placed in the punnett square RY Ry r. Y ry 15
![DIHYBRID CROSS Put Rs back together and Ys back together RY RY Ry r DIHYBRID CROSS Put R’s back together and Y’s back together RY RY Ry r.](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-16.jpg)
DIHYBRID CROSS Put R’s back together and Y’s back together RY RY Ry r. Y ry RRYY Ry r. Y ry Continue filling in the Punnett Square…. 16
![DIHYBRID CROSS RY Ry r Y ry RY RRYy Rr YY Rr Yy Ry DIHYBRID CROSS RY Ry r. Y ry RY RRYy Rr. YY Rr. Yy Ry](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-17.jpg)
DIHYBRID CROSS RY Ry r. Y ry RY RRYy Rr. YY Rr. Yy Ry RRYy RRyy Rr. Yy Rryy r. Y Rr. Yy rr. YY rr. Yy Rryy rr. Yy rryy ry Genotypic Ratio: 1 RRYY: 2 RRYy: 2 Rr. YY: 1 RRyy: 4 Rr. Yy: 2 Rryy: 2 rr. Yy: 1 rr. YY 1 rryy 17
![DIHYBRID CROSS RY Ry r Y ry RY RRYy Rr YY Rr Yy Ry DIHYBRID CROSS RY Ry r. Y ry RY RRYy Rr. YY Rr. Yy Ry](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-18.jpg)
DIHYBRID CROSS RY Ry r. Y ry RY RRYy Rr. YY Rr. Yy Ry RRYy RRyy Rr. Yy Rryy r. Y Rr. Yy rr. YY rr. Yy ry Rr. Yy Rryy rr. Yy rryy Phenotypic Ratio: Round/Yellow: 9 Round/green: 3 wrinkled/Yellow: 3 wrinkled/green: 1 18
![DIHYBRID PRACTICE If a pea plant with genotype RRYy round yellow peas is DIHYBRID PRACTICE � If a pea plant with genotype RRYy (round, yellow peas) is](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-19.jpg)
DIHYBRID PRACTICE � If a pea plant with genotype RRYy (round, yellow peas) is crossed with a pea plant with genotype rr. Yy (wrinkled, yellow peas), what would the results be? Key: � Cross: � Gametes: � Genotype: � Phenotype: � 19
![OTHER PATTERNS OF INHERITANCE 20 OTHER PATTERNS OF INHERITANCE 20](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-20.jpg)
OTHER PATTERNS OF INHERITANCE 20
![POLYGENIC TRAITS Many genes Many traits are controlled by more than POLYGENIC TRAITS � � “Many genes” ; Many traits are controlled by more than](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-21.jpg)
POLYGENIC TRAITS � � “Many genes” ; Many traits are controlled by more than one gene; have a variety of choices for expression. Ex: _hair color, eye color, skin tone___ 21
![MULTIPLE ALLELES Genes that have more than 2 alleles Ex blood group MULTIPLE ALLELES Genes that have more than 2 alleles � Ex: blood group. �](https://slidetodoc.com/presentation_image_h/7a62430c71453c7b6784f3dd5f340532/image-22.jpg)
MULTIPLE ALLELES Genes that have more than 2 alleles � Ex: blood group. � There are 3 possible alleles for this gene. � 22
Codominant allele
Codominance example
What is incomplete dominance give an example
Whats incomplete dominance
The difference between dominance and codominance
Co dominanc
Which no is neither prime nor composite
Is sickle cell anemia incomplete dominance
Incomplete vs codominance
Complete dominance
Examples of co dominance
Complete dominance definition
Incomplete dominance punnett square
Incomplete dominance in dogs
What is incomplete dominance
Incomplete dominance occurs when
Incomplete dominance definition
Incomplete dominance punnett square
Dominant hair color
What does codominant mean
Incomplete dominance pedigree
Incomplete dominance definition
Incomplete dominance