Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Slide 1
Document related concepts
Genetic engineering wikipedia , lookup
Epigenetics of diabetes Type 2 wikipedia , lookup
Gene desert wikipedia , lookup
Quantitative trait locus wikipedia , lookup
Genome evolution wikipedia , lookup
Vectors in gene therapy wikipedia , lookup
Genome (book) wikipedia , lookup
Gene expression profiling wikipedia , lookup
Gene expression programming wikipedia , lookup
History of genetic engineering wikipedia , lookup
Nutriepigenomics wikipedia , lookup
Site-specific recombinase technology wikipedia , lookup
Therapeutic gene modulation wikipedia , lookup
Artificial gene synthesis wikipedia , lookup
Transcript
Sex-Linked Genes Sample Problem! • Show, using a Punnett Square, that there is a 50% of having a boy or a girl when humans mate (aka get it on). Determination of Sex • Girls: XX (homologous sex chroms) • Boys: XY (nonhomol. sex chroms) • Only ends of Y have regions homologous to X X Y Sex Linked Genes • Found on sex chroms, mainly X (contains more DNA). • Easy to spot b/c many males will have trait XY..if trait is on X, no competition on Y (less DNA) Hemophilia-A Sex Linked Gene Colorblindness- A Sex-Linked Gene Colorblindness- A Sex-Linked Gene Colorblindness- A Sex-Linked Gene Colorblindness- A Sex-Linked Gene Fruit Fly Genetics! • Good for genetic studies (Drosophila melanogaster: breed at a high rate A generation can be bred every 2 weeks Only have 4 pairs of chromosomes • Wild type = normal phenotype • Traits alternative to wild type: mutants Some Traits are Sex Limited and Expression Depends on Sex of Individual Let’s do another Sample Problem! H Sex Linked Fruit Fly Sample Probs, Video Clip, and Lab
