1 / 11

Analyze the pedigree: Two parents do not have a genetic disorder but their child has the disorder.

Analyze the pedigree: Two parents do not have a genetic disorder but their child has the disorder. QUESTIONS: Is the disorder recessive or dominant? Are the parents homozygous or heterozygous? Infer what the parents genotypes are?. Analyze the cross, is this scenario possible?.

fionn
Download Presentation

Analyze the pedigree: Two parents do not have a genetic disorder but their child has the disorder.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Analyze the pedigree:Two parents do not have a genetic disorder but their child has the disorder. QUESTIONS: Is the disorder recessive or dominant? Are the parents homozygous or heterozygous?Infer what the parents genotypes are?

  2. Analyze the cross, is this scenario possible?

  3. Incomplete Dominance • The heterozygous phenotype is an intermediate between the two homozygous phenotypes. RR rr Rr

  4. Codominance • Both alleles are expressed in the heterozygote. • Checkered Chickens

  5. Multiple Alleles • Some traits are determined by multiple alleles. • Human Blood Types

  6. Epistasis • One gene hides the effect of other genes. E_ B_ E_ bb ee bb eeB_

  7. Polygenic Traits • Determined by multiple pairs of genes. • Skin color • Height • Eye color AaBbCcDdAABBCCDDaabbccdd

  8. Human Blood Types

  9. Human Blood Types

  10. Rh Factor • Blood Protein • Rh+ Dominant • Rh - Recessive

  11. Determine the genotypes of the parents if the father is blood type A, the mother is blood type B, the three offspring's blood types are O, AB and B.

More Related