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Inheritance 1
- 2. Observe this picture. What conclusion you can give from this picture?
- 3. Question? • Are they difference? • What is the differences between them? • Do they have any similiar characteristic ? • Where do they get all these characteristics?
- 5. What color is the parent? What is the characteristic of the first filial? What is the characteristic of the second filial? What is the propotion between the color? 3 yellow : 1 green
- 7. State • The color of parent flower • The color of offspring flower • Where the color goes?
- 8. State: • What is obvious color of the flower? • purple • Predict the color of offspring flowers • Purple and white
- 9. What • Trait can be observe? • Cant be seen in one generation? • Less color in the offspring? • What is the name of the trait that can be seen regularly • What is the name the trait that seldom be seen • What factor controling the trait??
- 10. • Trait always can be seen = dominance trait • Trait seldom be seen = recessive trait • Dominance trait is control by dominance factor • Recessive trait is control by recessive factors • The factor is called gene
- 11. Gene and alelle • Every trait is control by a gene • Gene consist of two allele • Each allele is located at a chromosome U 1 chromosome 1 allele
- 12. Gene dan allele Trait – control by a pair of allele at homolog chromosome What is homolog chromosome? Homolog chromosomes pairsChromosomes in the cell
- 13. Gene dan allele TT Homolog chromosomes AlleleAllele Gene consist of 2 allele in same Location at homolog chromosomes
- 14. • The yellow color bean is control by dominance gene (K) • = KK • The green color bean is control by ressesive gene (k) • = kk • Heterozygote form: = Kk • The color is yellow, yellow is dominance
- 15. KK Yellow parent X Green parent kk K K k k Kk KkKk Kk KK kkKkKk kK K k gamete F1 F1 X F1 gamete F2 yellow yellow yellow green meiosis fertilization meiosis fertilization
- 16. Try again: • Parent : yellow X green
- 17. For F2 generation: • Use Punnet square: Gamete maleGamete female K k K k KK Kk Kk kk
- 18. What is.. • Parent genotype ? • Parent Phenotype ? • Genotype F1 • Phenotype F1 • Genotype F2 • Phenotype F2 • Phenotype ??? Genotype ???
- 19. • Genotype = type of allele that control the trait • Phenotype = the characteristic can be seen
- 20. So:- • KK = pure breed (homozygote) - yellow • Kk = hybrid (heterozygote) - yellow • kk = pure breed (homozygote) – green • Practice: − Do the cross of the following:
- 22. What is the conclusion can be made? • Trait is control by a pair of allele, only an allele can be inherited in gamete. First Mendel Law (Law of Segregation) any pair of characteristics there is only one gene in a gamete even though there are two genes in ordinary cells.
- 23. Think ...
- 24. Practice:
- 25. Two trait inherited. Each trait is controlled control by two allele Each of the allele from any trait able to combine during gamete formation in meiosis .
- 26. Female Drosophila Purple eye Black body Male Drosophila Red eye Brown body .
- 27. Key: U – dominance allele for purple eye U – recessive allele for red eye H- dominance allele for black body H – recessive allele for brown body Draw schematic diagram to show the inheritance of the trait in F1 and F2 generation. UUHH X uuhhParent Gamete UH uh First filial Generation (F1) UuHh
- 28. Random cross between F1 with any of F1 UuHh X UuHh Gamete: UH Uh uH uh UH Uh uH uh F2: UH Uh uH uh UH Uh uH uh
- 29. Phenotype Number Purple eye, brown body Purple eye, black body Red eye, black body Red eye, brown body
- 34. Mendel's Law of Independent Assortment two characteristics the genes are inherited independently.