1 / 11

Genetics in Action: Understanding Phenotype through Gene Expression

Explore the complex world of Mendelian genetics in AP Biology Part 2. Discover how genes dictate phenotype through gene expression and ribosome interactions. Dive into concepts like incomplete dominance, complete dominance, codominance, multiple alleles, pleiotropy, epistasis, dihybrid crosses, and polygenic inheritance. Observe the intricate interplay of genetic factors in shaping traits and characteristics, illustrated with the Million Dollar Blueprint analogy and examples like sickle cell anemia. Delve into genetic ratios, fraction of progeny, and multifactorial scenarios for a comprehensive understanding.

asher-rose
Télécharger la présentation

Genetics in Action: Understanding Phenotype through Gene Expression

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. AP Biology Mendelian Genetics Part 2

  2. Phenotype by gene expression

  3. 3’ T A C C A G C C G G T A A T A G G G A C C A T T 5’ DNA TEMPLATE 5’ A U G G U C G G C C A U U A U C C C U G G U A A 3’ mRNA METH VAL GLY __ HIST TYR __ PRO TRP __ __ ___ ___ PROTEIN 3’ U A C C A G C C G G U A A U A G G G A C C A U U 5’ ANTI – CODON Sequence Does the DNA Sequence (Million Dollar Blueprint) look like the Anti-codon Sequence? Remember, this is how the ribosome “knew” the Amino Acid was Correct.

  4. Incomplete Dominance

  5. Complete Dominance

  6. Codominance (AB) & Multiple Alleles

  7. Pleiotropy (Sickle Cell)

  8. BbCc BbCc Sperm bC Bc 1 1 1 1 BC bc 4 4 4 4 Epistasis 1 BC BBCC BbCC BBCc BbCc 4 1 bC BbCC bbCC BbCc bbCc 4 BBcc Bbcc BBCc BbCc 1 Bc 4 bbcc Bbcc 1 bbCc bc BbCc 4 9 3 4 16 16 16

  9. Dihybrid – Normal 9:3:3:1 ratio

  10. AaBbCc AaBbCc aabbcc Aabbcc AaBbcc AaBbCc AABbCc AABBCc AABBCC Polygenic Inheritance&Norm of the Reaction 20/64 15/64 Fraction of progeny 6/64 1/64

  11. Multifactorial example(Acid in soil changes the color)

More Related