![Page 1: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/1.jpg)
Genetics
Textbook: Biology11 Chapter 4
![Page 2: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/2.jpg)
Heredity
![Page 3: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/3.jpg)
Gregor Mendel Austrian monk (1822-
1884) Worked with pea
plant Readily
distinguishable characteristics
Short generation time Easy to control
pollination
![Page 4: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/4.jpg)
![Page 5: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/5.jpg)
Reproductive
structures offlowers
http://anthro.palomar.edu/mendel/mendel_1.htm
transfer pollen from pollen
parent to seed parent
![Page 6: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/6.jpg)
http://academic.kellogg.cc.mi.us/herbrandsonc/bio111/genetics.htm
![Page 7: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/7.jpg)
http://fig.cox.miami.edu/~cmallery/150/mendel/heredity.htm
![Page 8: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/8.jpg)
Monohybrid Cross (p.3 and 132-137)Tall x Small (homozygous)
![Page 9: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/9.jpg)
http://www.geneticfutures.com/thegift/info/sheet1.asp
![Page 10: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/10.jpg)
The 3 Mendel’s laws (p.2) Mendel's first law (also called the
law of segregation) states that during the formation of gametes (reproductive cells), pairs of allele for a specific trait separate so that offspring receive one factor from each parent.
![Page 11: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/11.jpg)
Mendel’s second law (p.6) Mendel's second law (also called
the law of independent assortment) states that the distribution of alleles for one trait that occurs during the formation of gametes (meiosis) does not affect the distribution of alleles for other traits.
![Page 12: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/12.jpg)
Mendel’s third law Mendel's third law (also called the
law of dominance) states that one of the genes for a pair of inherited traits will be dominant and the other recessive, unless both factors are recessive.
![Page 13: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/13.jpg)
Practice makes perfect Bio 11 p. 137 #1 And genetics worksheet 1
![Page 14: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/14.jpg)
Test Cross: To determine the genotype of a dominant phenotype (p.4)
![Page 15: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/15.jpg)
Practice makes perfect Do genetics worksheet 2 And p. 137-138 # 2 & 4 And p. 140 #5
![Page 16: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/16.jpg)
Dihybrid CrossAnd now, the fun part, the F2 generation
![Page 17: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/17.jpg)
Dihybrid cross (answers for p.5 of booklet)
http://fig.cox.miami.edu/~cmallery/150/mendel/heredity.htm
![Page 18: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/18.jpg)
Practice makes perfect Do genetics worksheet 3 Lab: Genetics of Corn Lab: Virtual Fruit Fly
![Page 19: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/19.jpg)
Multiple alleles (p.6) More than 2 alleles Ex: eye colour of fruit flies
wild type(red) > apricot > honey > white Phenotype genotype
wild type ___apricot ___ honey ___white ___
![Page 20: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/20.jpg)
Multiple alleles (p.6) Exercice E1E4 x E2E3 (red x
apricot)
![Page 21: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/21.jpg)
Incomplete dominance (p.7, 144-145)
Ex: Colour of snapdragons’ flowers Red x White CRCR x CWCW (do Punnett square) Ratio
F2?
![Page 22: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/22.jpg)
Co-dominance (p.9) Another form of incomplete dominance. Ex: red, white, roan cow, ABO blood
groups Alleles: IA, IA, i Group A: antigen ___ : ____ or ____ Group B: antigen ___ : ____ or ____ Group AB: antigen ___ : ____ Group O: antigen ___ : ____
![Page 23: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/23.jpg)
Co-dominance: try this Mother is A Baby is AB Man is O Man is B Who is the father? Show your
answer by drawing the 2 possible Punnett Squares.
![Page 24: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/24.jpg)
![Page 25: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/25.jpg)
Practice makes perfect Do Genetics worksheet 4 Bio 11 p. 145 # 1 & 4.
![Page 26: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/26.jpg)
Lethal genes (p. 9) Read and do Polygenic Inheritance
![Page 27: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/27.jpg)
Polygenic Inheritance (p.9) Characteristic controlled by several
pairs of genes which are independent of each other, often on different chromosomes eg. Eye color, skin color, height
Shows continuous variation
![Page 28: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/28.jpg)
Polygenic inheritance
AB Ab aB ab
AB AABB AABb AaBB AaBb
Ab AABb AAbb AaBb Aabb
aB AaBB AaBb aaBB aaBb
ab AaBb Aabb aaBb aabb
![Page 29: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/29.jpg)
Polygenic inheritance Let’s do bottom of p. 9 together
![Page 30: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/30.jpg)
Polygenic Inheritance with complimentary interaction (p.10)
Pea comb = rrP_ Rose comb = R_pp Walnut comb = R_P_ Single comb = rrpp Let’s do p. 10 together
![Page 31: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/31.jpg)
More practice Genetics worksheet 5
![Page 32: Genetics Textbook: Biology11 Chapter 4. Heredity](https://reader030.vdocuments.site/reader030/viewer/2022032709/56649eaa5503460f94baf6b8/html5/thumbnails/32.jpg)
Linkage