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CHAPTER 2: GENETIC INHERITANCE
Concept review… Genetic inheritance Terms & concepts Mendel’s experiment Pisum sativum  – garden pea Monohybrid crosses Dihybrid crosses Law of segregation Law of independent assortment Deviation from Mendel’s Law ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Genetic mapping Pedigree analysis
Important terms… allele genes locus genotype phenotype dominant recessive homozygous heterozygous true-breed
OBJECTIVE ,[object Object],[object Object]
Terms used in genetic inheritance ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],P Q p q
There are two  loci , one is for flower color and the other is for stem length
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object]
[object Object],Organisms that are homozygous for any given genotype and therefore pass it on to all their progeny in a cross with a similar homozygote
[object Object],[object Object],[object Object]
TYPES OF CROSSES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object]
P :  X b X b   x  X B Y   color blind  normal G :  X b   X b   X B   Y F1 : X B X b   X B X b   X b Y  X b Y EARLIER CROSS B – normal b – color blind normal female  Color blind male Phenotype ratio : 1 normal : 1 color blind
P :  X B X B   x  X b Y   normal  color blind G : X B   X B   X b   Y F1 : X B X b   X B X b   X B Y  X B Y RECIPROCAL CROSS Female carrier  Normal male Phenotypic ratio : All normal
Mendel’s Experiment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Page 250
Mendel’s Experimental Result ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object]

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Hour 1

  • 1. CHAPTER 2: GENETIC INHERITANCE
  • 2.
  • 3. Important terms… allele genes locus genotype phenotype dominant recessive homozygous heterozygous true-breed
  • 4.
  • 5.
  • 6.
  • 7. There are two loci , one is for flower color and the other is for stem length
  • 8.
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15. P : X b X b x X B Y color blind normal G : X b X b X B Y F1 : X B X b X B X b X b Y X b Y EARLIER CROSS B – normal b – color blind normal female Color blind male Phenotype ratio : 1 normal : 1 color blind
  • 16. P : X B X B x X b Y normal color blind G : X B X B X b Y F1 : X B X b X B X b X B Y X B Y RECIPROCAL CROSS Female carrier Normal male Phenotypic ratio : All normal
  • 17.
  • 18.
  • 20.
  • 21.