![Page 1: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/1.jpg)
Heredity – Part 2Chapter 10 Section 10.3
Biology: Exploring Life
Sally Stratton
![Page 2: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/2.jpg)
10.3 Inheritance Pattern Variations Co-dominance
Multiple alleles
Polygenic inheritance
Nature vs. Nurture
![Page 3: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/3.jpg)
Review 10.3
1. If a cow can be red (rr), black (RR), or roan (Rr), what inheritance variation does it exemplify?
2. Hair color is dependant on a combination of many genes. What type of inheritance variation is it?
![Page 4: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/4.jpg)
Incomplete Dominance Problem 1
In radishes, the shape may be long (RR), round (rr), or oval (Rr). Cross between long and oval radishes gave 161 long and 159 oval. Crosses between oval and round gave 204 oval and 200 round. Crosses between oval and oval gave 120 long, and 245 oval, and 113 round.
A. What inheritance pattern do these ratios show?
![Page 5: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/5.jpg)
Incomplete Dominance Problem 1
In radishes, the shape may be long (RR), round (rr), or oval (Rr). Cross between long and oval radishes gave 161 long and 159 oval. Crosses between oval and round gave 204 oval and 200 round. Crosses between oval and oval gave 120 long, and 245 oval, and 113 round.
A. What inheritance pattern do these ratios show? Incomplete (Co-dominance)
![Page 6: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/6.jpg)
Incomplete Dominance Problem 1
In radishes, the shape may be long (RR), round (rr), or oval (Rr). Cross between long and oval radishes gave 161 long and 159 oval. Crosses between oval and round gave 204 oval and 200 round. Crosses between oval and oval gave 120 long, and 245 oval, and 113 round.
A. What inheritance pattern do these ratios show? Incomplete (Co-dominance)
B. What are the genotypes for
long?
round?
oval?
![Page 7: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/7.jpg)
Incomplete Dominance Problem 1
In radishes, the shape may be long (RR), round (rr), or oval (Rr). Cross between long and oval radishes gave 161 long and 159 oval. Crosses between oval and round gave 204 oval and 200 round. Crosses between oval and oval gave 120 long, and 245 oval, and 113 round.
A. What inheritance pattern do these ratios show? Incomplete (Co-dominance)
B. What are the genotypes for
long? RR
round? rr
oval? Rr
![Page 8: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/8.jpg)
Incomplete Dominance Problem 1
In radishes, the shape may be long (RR), round (rr), or oval (Rr). Cross between long and oval radishes gave 161 long and 159 oval. Crosses between oval and round gave 204 oval and 200 round. Crosses between oval and oval gave 120 long, and 245 oval, and 113 round.
A. What inheritance pattern do these ratios show? Incomplete (Co-dominance)
B. What are the genotypes for long? RR round? rr oval? Rr
C. What would you expect from a cross between two long radishes?
![Page 9: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/9.jpg)
Incomplete Dominance Problem 1
In radishes, the shape may be long (RR), round (rr), or oval (Rr). Cross between long and oval radishes gave 161 long and 159 oval. Crosses between oval and round gave 204 oval and 200 round. Crosses between oval and oval gave 120 long, and 245 oval, and 113 round.
A. What inheritance pattern do these ratios show? Incomplete B. What are the genotypes for long? RR round? rr oval? Rr
C. What would you expect from a cross between two long radishes? All Long radishes RRRR x RR = R R
R RR RR R RR RR
![Page 10: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/10.jpg)
Incomplete Dominance Problem 1
In radishes, the shape may be long (RR), round (rr), or oval (Rr). Cross between long and oval radishes gave 161 long and 159 oval. Crosses between oval and round gave 204 oval and 200 round. Crosses between oval and oval gave 120 long, and 245 oval, and 113 round.
A. What inheritance pattern do these ratios show? Incomplete
B. What are the genotypes for long? RR round? rr oval? Rr
C. What would you expect from a cross between two long radishes? All Long radishes RR
D. From a cross between two round radishes?
![Page 11: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/11.jpg)
Incomplete Dominance Problem 1In radishes, the shape may be long (RR), round (rr), or oval
(Rr). Cross between long and oval radishes gave 161 long and 159 oval. Crosses between oval and round gave 204 oval and 200 round. Crosses between oval and oval gave 120 long, and 245 oval, and 113 round.
A. What inheritance pattern do these ratios show? Incomplete
B. What are the genotypes for long? RR round? rr oval? RrC. What would you expect from a cross between two long
radishes? All Long radishes RRD. From a cross between two round radishes?
All round radishes rrrr x rr = r r r rr rr r rr rr
![Page 12: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/12.jpg)
Incomplete Dominance Problem 2
In four-o’ clocks, the allele from red flowers is incompletely dominant to the allele for white flowers. The heterozygous is pink. A gardener crosses a red four-o’ clock with a pink four-o’ clock. What are the expected genotypic and phenotypic ratios from this cross?
![Page 13: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/13.jpg)
Incomplete Dominance Problem 2
In four-o’ clocks, the allele from red flowers is incompletely dominant to the allele for white flowers. The heterozygous is pink. A gardener crosses a red four-o’ clock with a pink four-o’ clock. What are the expected genotypic and phenotypic ratios from this cross?
Key RR = red, rr = white Rr = pink
![Page 14: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/14.jpg)
Incomplete Dominance Problem 2
In four-o’ clocks, the allele from red flowers is incompletely dominant to the allele for white flowers. The heterozygous is pink. A gardener crosses a red four-o’ clock with a pink four-o’ clock. What are the expected genotypic and phenotypic ratios from this cross?
Key RR = red, rr = white Rr = pink Parents = RR x Rr
![Page 15: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/15.jpg)
Incomplete Dominance Problem 2
In four-o’ clocks, the allele from red flowers is incompletely dominant to the allele for white flowers. The heterozygous is pink. A gardener crosses a red four-o’ clock with a pink four-o’ clock. What are the expected genotypic and phenotypic ratios from this cross?
Key RR = red, rr = white Rr = pink Parents = RR x Rr R R Punnett R r
![Page 16: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/16.jpg)
Incomplete Dominance Problem 2
In four-o’ clocks, the allele from red flowers is incompletely dominant to the allele for white flowers. The heterozygous is pink. A gardener crosses a red four-o’ clock with a pink four-o’ clock. What are the expected genotypic and phenotypic ratios from this cross?
Key RR = red, rr = white Rr = pink Parents = RR x Rr R R Punnett R RR RR r Rr Rr
![Page 17: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/17.jpg)
Incomplete Dominance Problem 2
In four-o’ clocks, the allele from red flowers is incompletely dominant to the allele for white flowers. The heterozygous is pink. A gardener crosses a red four-o’ clock with a pink four-o’ clock. What are the expected genotypic and phenotypic ratios from this cross?
Key RR = red, rr = white Rr = pink Parents = RR x Rr R R Punnett R RR RR Genotypic 2:2:0 Pheno 2:2:0 r Rr Rr
![Page 18: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/18.jpg)
Multiple Alleles
Human Blood Types
Genotype Phenotype
AA, Ao A Blood
BB, Bo B Blood
AB AB Blood
oo O blood
![Page 19: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/19.jpg)
Multiple Alleles Problem 1
Cross a man with type A blood with a woman with type B heterozygous blood. What are the possible genotypes and phenotypes of their offspring?
![Page 20: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/20.jpg)
Multiple Alleles Problem 1
Cross a man with type A blood with a woman with type B heterozygous blood. What are the possible genotypes and phenotypes of their offspring?
Man = AA or Ao Woman Bo
![Page 21: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/21.jpg)
Multiple Alleles Problem 1
Cross a man with type A blood with a woman with type B heterozygous blood. What are the possible genotypes and phenotypes of their offspring?
Man = AA or Ao Woman Bo Punnett A A A o
B B
o o
![Page 22: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/22.jpg)
Multiple Alleles Problem 1
Cross a man with type A blood with a woman with type B heterozygous blood. What are the possible genotypes and phenotypes of their offspring?
Man = AA or Ao Woman Bo Punnett A A A o
B AB AB B AB Bo
o Ao Ao o Ao oo
![Page 23: Heredity – Part 2 Chapter 10 Section 10.3 Biology: Exploring Life Sally Stratton](https://reader035.vdocuments.mx/reader035/viewer/2022062312/551a54e9550346545e8b5713/html5/thumbnails/23.jpg)
Multiple Alleles Problem 1
Cross a man with type A blood with a woman with type B heterozygous blood. What are the possible genotypes and phenotypes of their offspring?
Man = AA or Ao Woman Bo Punnett A A A o
B AB AB B AB Bo
o Ao Ao o Ao oo Genotypes: AB, Ao, Bo, oo Phenotypes: AB,A,B,O