1 / 4

The origins of genetics

The origins of genetics. Chapter 8. Traits expressed as simple ratios. A monohybrid cross involves one pair of contrasting traits. (crossing a plant with purple and white flowers) STEP 1: Mendel self pollinated the plants to ensure they were true breeding. (P generation)

zahi
Télécharger la présentation

The origins of 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. The origins of genetics Chapter 8

  2. Traits expressed as simple ratios • A monohybrid cross involves one pair of contrasting traits. (crossing a plant with purple and white flowers) • STEP 1: Mendel self pollinated the plants to ensure they were true breeding. (P generation) • STEP 2: Mendel cross pollinates two P generation plants with contrasting traits. (first filial generation/ f1 generation) • STEP 3: Mendel allowed the F1 generation to self pollinate. (second filial generation/ f2 generation)

  3. Mendel’s Results • F1 generation showed only one form of the character (all plants were purple) • However in the F2 generation the contrasting trait reappeared (some plants were white)

More Related