1 / 3

Test Crosses

Test Crosses. How can you find the genotype of a dominant phenotupe?. If you have a guinea pig with a dominant phenotype, what’s the possible genotype(s) for that trait? homozygous dominant or heterozygous

sorcha
Download Presentation

Test Crosses

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. Test Crosses

  2. How can you find the genotype of a dominant phenotupe? • If you have a guinea pig with a dominant phenotype, what’s the possible genotype(s) for that trait? homozygous dominant or heterozygous • If the guinea pig has a recessive phenotype, what’s the possible genotype(s) for that trait? homozygous recessive • How can you use what you know about dominant/recessive to find the ACTUAL genotype of that dominant phenotype? Do a test cross! • crossing a dominant phenotype with a recessive phenotype will determine the dominant genotype

  3. Test Cross • Guinea pig with folded ears (dominant phenotype) – is the guinea pig EE or Ee? • If you cross it with a straight-eared guinea pig (ee), you will see! • Example…

More Related