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GENETICS REVIEW

GENETICS REVIEW. ROUND 1 – 5 POINTS EACH ROUND 2 – 10 POINTS EACH ROUND 3 - 15 POINTS EACH. 1. Below is a picture of what type of mutation?. Normal. Mutated. 1. Below is a picture of what type of mutation?. Point Mutation. You will need to know:

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GENETICS REVIEW

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  1. GENETICS REVIEW ROUND 1 – 5 POINTS EACH ROUND 2 – 10 POINTS EACH ROUND 3 - 15 POINTS EACH

  2. 1. Below is a picture of what type of mutation? Normal Mutated

  3. 1. Below is a picture of what type of mutation? Point Mutation You will need to know: How to read codons and translate them into amino acids

  4. 2. Phenotypic Ratio:__________________ Genotypic Ratio: __________________ T t T T T T t t T t t t

  5. 3 : 1 2. Phenotypic Ratio:__________________ Genotypic Ratio: __________________ 1: 2 : 1 T t T T T T t t T t t t You will need to know: The difference between genotypes and phenotypes How to find ratios vs. percentages

  6. 3. Create a punnett square for an X-linked recessive trait. The mother is a carrier and the father has the recessive trait. Complete the Punnett.

  7. 3. Create a punnett square for an X-linked recessive trait. The mother is a carrier and the father has the recessive trait. Complete the Punnett. Xb Y XB Xb XB Y XB Xb Xb Xb Xb Y You will need to know: How to read and create punnett squares AND how sex-linked traits are inherited.

  8. 4. What is the genotype of the circled offspring? TG Tg tG tg TG Tg tG tg

  9. 4. What is the genotype of the circled offspring? ttGG You will need to know: How to read a dihybrid cross

  10. 5. What are the possible genotypes for someone with “B” blood?

  11. 5. What are the possible genotypes for someone with “B” blood? lB lB or lBi You will need to know: The genotypes for the different blood types

  12. 6. What keeps siblings (that are not identical twins) genetically different from one another? • Mitosis • Mutations • Crossing Over • Blood Types

  13. 6. What keeps siblings (that are not identical twins) genetically different from one another? • Mitosis • Mutations • Crossing Over • Blood Types

  14. ROUND 2

  15. 1. When there are two alleles that are expressed equally it is called?

  16. 1. When there are two alleles that are expressed equally it is called? Co-dominance You will need to know: The definition of co-dominance AND an example

  17. 2. All organisms have ATCG in their DNA. How are we all different then? • The sequences of the ATCG’s are different for each individual organism. • Because sometimes there is “U” • The ATCG stand for different things in different species. • The codons in other organisms code for different amino acids.

  18. 2. All organisms have ATCG in their DNA. How are we all different then? • The sequences of the ATCG’s are different for each individual organism. • Because sometimes there is “U” • The ATCG stand for different things in different species. • The codons in other organisms code for different amino acids.

  19. 3. When a dark blue flower is mixed with a no-pigment flower and it produces light blue flowers, this is called _____________ dominance.

  20. 3. When a red flower is mixed with a no-pigment flower and it produces pink flowers, this is called _____________ dominance. Incomplete You will need to know: The definition of Incomplete dominance AND an example

  21. 4. _________________ cells are cells with half the number of chromosomes. An example of these type of cells are:_____________________________ _________________ cells are cells with two of each type of chromosome. An example of these types of cells are:____________________________

  22. 4. HAPLOID _________________ cells are cells with half the number of chromosomes. An example of these type of cells are:_____________________________ _________________ cells are cells with two of each type of chromosome. An example of these types of cells are:____________________________ SEX CELLS DIPLOID BODY CELLS

  23. 5. The end result of Meiosis is……. • 4 Diploid cells containing 23 Chromosomes • 4 Identical Haploid cells • 2 Identical Diploid cells • 4 Haploid cells that are not identical

  24. 5. The end result of Meiosis is……. • 4 Diploid cells containing 23 Chromosomes • 4 Identical Haploid cells • 2 Identical Diploid cells • 4 Haploid cells that are not identical

  25. 6. Height and skin color are examples of? • Incomplete Dominance • Co-dominance • Polygenic Inheritance • Simple Dominance

  26. 6. Height and skin color are examples of? • Incomplete Dominance • Co-dominance • Polygenic Inheritance • Simple Dominance You will need to know: The definition of polygenic inheritance and examples

  27. BONUS BONANZA WORTH 20 POINTS A family has had six female offspring. What are the odds (percentage wise) that their next child will be a girl?

  28. BONUS BONANZA WORTH 20 POINTS A family has had six female offspring. What are the odds (percentage wise) that their next child will be a girl? 50%

  29. ROUND 3

  30. All the children in a family have AB blood. • Which of the following genotype combinations could the parents possess? • Both parents are AB • One parent is heterozygous A and the other is heterozygous B • One parent is homozygous A and the other is homozygous B • All of the above • None of the above

  31. All the children in a family have AB blood. • Which of the following genotype combinations could the parents possess? • Both parents are AB • One parent is heterozygous A and the other is heterozygous B • One parent is homozygous A and the other is homozygous B • All of the above • None of the above

  32. 2. How is it possible to have two parents that do not have a genetic disorder give birth to a child that does have it. Show evidence that this can happen.

  33. 2. How is it possible to have two parents that do not have a genetic disorder give birth to a child that does have it. Show evidence that this can happen. If Both parents are carriers, then they can pass it to their child.

  34. 3. What are the allele combinations that can be found in a person’s sex cells if their genotype is AaBb?

  35. 3. What are the allele combinations that can be found in a person’s sex cells if their genotype is AaBb? AB , Ab , aB , ab You will need to know: How to figure out allele combinations for gametes when creating a dihybrid cross

  36. S – sphereical s – wrinkled Y – yellow y - green

  37. 4. Name two things a doctor can discover by looking at a karyotype.

  38. 4. Name two things a doctor can discover by looking at a karyotype. Gender, and chromosomal abnormalities (like # or shape)

  39. 5. What is the phenotype of the circled offspring? P – purple p - yellow S - Speckled s - striped

  40. 5. What is the phenotype of the circled offspring? Purple and striped P – purple p - yellow S - Speckled s - striped You will need to know: How to fill in a dihybrid cross

  41. 6. Below is a ________________ of what you would find in a ____________ cell.

  42. Karyotype 6. Below is a ________________ of what you would find in a ____________ cell. Haploid

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