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Genetics Review

Genetics Review. Mendel Punnett Squares Complex inheritance Human Genetics. Science of how traits are passed on from one generation to the next. Heredity Or Genetics. Science of how traits are passed on from one generation to the next. Genetics. Father of Genetics is:.

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Genetics Review

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  1. Genetics Review Mendel Punnett Squares Complex inheritance Human Genetics

  2. Science of how traits are passed on from one generation to the next Heredity Or Genetics

  3. Science of how traits are passed on from one generation to the next Genetics

  4. Father of Genetics is: Mendel or Hooke

  5. Father of Genetics is: Mendel

  6. What kind of organisms did Mendel work with? Fruit flies or Peas

  7. What kind of organisms did Mendel work with? Peas

  8. Parent generation F1 or P1

  9. Parent generation P1 Stands for Parent

  10. First and second generation of offspring F1 and F2 or G1 and G2

  11. First and second generation of offspring F1 and F2F = “Filial” Latin for Offspring

  12. An allele that hides the presence of another allele Recessive Dominant

  13. An allele that hides the presence of another allele Dominant

  14. An allele that is hidden by the presence of another allele Recessive Incomplete

  15. An allele that is hidden by the presence of another allele Recessive

  16. Why did recessive traits disappear in the F1 generation and return in the F2 generation? COMPLETE DOMINACE OR SEGREGATION

  17. Why did recessive traits disappear in the F1 generation and return in the F2 generation? Complete DominaceAND Segregation

  18. Complete Dominance – Parent generation were pure Domiant and Recessive for traits: TT x tt so F1 generation all were heterozygous: Tt and only showed the dominant trait so the recessive trait “disappeared” or was hidden. • Segregation – using a Punnett square we can see that when the F1 generation are crossed with each other: Tt x Tt, ¼ of the offspring will have the recessive trait “reappear” because during meiosis – alleles separate or segregate and offspring get only one allele from Mom and one allele from Dad Explanation

  19. Punnett Squares

  20. T Dominant or Recessive

  21. T Dominant (capital letTer)

  22. tt Homozygous or heterozygous

  23. tt Homozygous (letters identical)

  24. Ll Homozygous or Heterozygous

  25. Ll Heterozygous (Different cases – one lower and one upper)

  26. If Black is dominant what are 2 possible genotypes for black cats? BB bb or Bb BB

  27. If Black is dominant what are 2 possible genotypes for black cats? BB or Bb both will look Black because both have at least one dominant allele

  28. What is the phenotype for this plant: tt, Tall is dominant to short Short Medium

  29. What is the phenotype for this plant: tt, Tall is dominant to short short

  30. What are the genotypes of these parents: • Heterozygous for tall x Homozygous for short Tt x tt or TT x tt

  31. What are the genotypes of these parents: • Heterozygous for tall x Homozygous for short Tt x tt

  32. The appearance of an organism Genotype or Phenotype

  33. The appearance of an organism Phenotype - Physical Appearance

  34. What is the genotype of a plant that is white, when dominant trait is Green? ww or gg

  35. What is the genotype of a plant that is white, when dominant trait is Green? gg The dominant trait determines the letter used, recessive traits are always shown in lower case of dominant letter

  36. R r R r R = round, r = wrinkled Cc? What genotype goes here?

  37. R r R r Cc? What genotype goes here? rr

  38. R r R r Cc? What Phenotype goes here?

  39. R r R r Cc? What Phenotype goes here? wrinkled

  40. Rr r r Cc What Percent of offspring will be Round?

  41. Rr r r Cc What Percent of offspring will be Round? 50%

  42. hybrid Homozygous or heterozygous

  43. hybrid heterozygous

  44. Pure genotype Homozygous or Heterozygous

  45. Pure genotype Homozygous

  46. Complex inheritance

  47. A trait with multiple alleles Blood type or skin color

  48. A trait with multiple alleles Blood type - A, B, o (skin color has multiple genes and a whole range of in between phenotypes)

  49. RR = red Rr= red rr=white What kind of dominance? Complete or incomplete

  50. RR = red Rr= red rr=white What kind of dominance? Complete

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