1 / 10

Developmental Genetics

Developmental Genetics. Three Stages of Development. division morphogenesis differentiation. What leads to changes?. Differential gene expression. Caused by. Sequential Regulation. Gene Expression is sequentially regulated Cells become determined before they differentiate.

sharla
Télécharger la présentation

Developmental 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. Developmental Genetics

  2. Three Stages of Development • division • morphogenesis • differentiation

  3. What leads to changes? • Differential gene expression. • Caused by...

  4. Sequential Regulation • Gene Expression is sequentially regulated • Cells become determined before they differentiate

  5. Plants have totipotent stem cells (meristems) throughout life Animals have totipotent stem cells for short part of life Animal cells move in development Plant and animal devo

  6. Of course we have videos • Human Development • Different types of potential cells • Embryonic stem cell lines • Nuclear transfer: cloning

  7. Cloning • Reproductive cloning • Many problems • Defects • Too many methyl groups

  8. Stem Cells • Adult stem cells • Bone marrow • Brain • Skin • Hair • Eyes • Dental pulp • Embryonic stem cells are pluripotent • Therapeutic cloning • New induced pluripotent stem cells from adult cells.

  9. Pattern Formation in Animals • Establishes major axes: • Anterior posterior • Right and left sides • Video

  10. Homeotic Genes • Homeotic genes contain homeobox sequences (180 nucleotides long) regulate body part formation • Homeobox codes for homeodomain (60 aa long) • Homeodomains are almost identical in animal kingdom • A video…of course

More Related