1 / 9

Genetics

Genetics. Travis Mackoy. Gregor Mendel. 1860s Developed basic principles of genetics Studied genetics of pea plants. Basic Terminology. Gene- Basic Unit of heredity Allele- Gene that exists in >1 form Genotype- Genetic makeup of individual

dreama
Download Presentation

Genetics

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. Genetics Travis Mackoy

  2. Gregor Mendel • 1860s • Developed basic principles of genetics • Studied genetics of pea plants

  3. Basic Terminology • Gene- Basic Unit of heredity • Allele- Gene that exists in >1 form • Genotype- Genetic makeup of individual • Phenotype- Physical manifestation of genotype

  4. Mendel’s First Law:Law of Segregation • Genes exist in alternate forms • Two alleles for each inherited trait; one from each parent • Alleles separate during meiosis, resulting in gametes carrying one allele • And…

  5. Dominance • If two alleles are different, one will be dominant and the other will be silent. • Dominant- denoted by capital letter • Recessive- denoted by lower case letter

  6. Punnett Square • Way to predict monohybrid cross • Aa x Aa • A=black flowers, a=white flowers Genotype: 1:3:1 Phenotype: 3 Black: 1 White

  7. Mendel’s Second Law:Law of Independent Assortment • Dihybrid Cross

  8. The Chromosomal Theory of Inheritance • Crossing Over/ Genetic Recombination • Occurs during meiosis (Prophase I)

  9. Variations on Mendelian Genetics • Incomplete Dominance • Co-dominance • Sex Determination: • Females have XX, while males have XY

More Related