DSML11-040510Development-1

DSML11-040510Development-1 - David Q. Matus April 5, 2010...

Info iconThis preview shows pages 1–16. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: David Q. Matus April 5, 2010 Bio 202 Development, Mutation, and Evolution http://celldynamics.org/celldynamics/gallery/timelapse.ht LEARNING OBJECTIVES Identify and describe the main principles of developmental biology Explain how mutation serves as a driving force behind evolutionary change and disease History of developmental biology Homunculus or Animalicules (N. Hartsoeker c. 1695) Preformation vs. Epigenesis Aristotle was the first embryologist known to history in Generation of Animals (c. 350 B.C.E.) investigated how animals were born and identified two major cell division patterns (holoblastic vs. meroblastic cleavage) Preformation: embryo or miniature individual preexists in either the mother's egg or the father's sperm and begins to grow when properly stimulated. Spermists vs. Ovists Epigenesis: the embryo begins as an undifferentiated mass and that new parts are added during development. Eventually settled by cell theory, microscopy, and new staining techniques in the 19th century What is development? Process by which multi-cellular organisms (plants and animals) grow and develop Stages of development: fertilization cleavage gastrulation (patterning/germ layer specification) differentiation morphogenesis (organ formation) growth metamorphosis regeneration Body plan diversity in the Metazoa Development and Evolution http://www.wikiwak.com/image/Animal+diversity+October+2007.jpg ? http://myweb.dal.ca/rpcroll/images/gallery/ctenophore.jpg http://oceanexplorer.noaa.gov/explorations/07philippines/ba Ctenophores: Comb Jellies http://www.lpdatafiles.com/data/mso2003/SCUBA%20SPONGES.jpg http://www.reefnews.com/reefnews/news/v05n12/azurespg Porifera: Sponges //www.arcodiv.org/watercolumn/cnidarian/images/Chrysaora_melanaster_400 http://biodev.obs-vlfr.fr/recherche/houliston/Clytia/Nematos Cnidarians: Corals, sea anemones, jellyfish p://pictopia.com/perl/get_image?provider_id=318&size=550x550_mb&ptp_photo http://devbio.umesci.maine.edu/styler/globalworming/img/F Acoelomorphs: Acoels and nematodermatid s (flatworms) http://www.lifesci.ucsb.edu/~haddock/plankton/Chaeto.gif http://www.gpmatthews.nildram.co.uk/animalcules/gastrotri Chaetognaths: arrow worms Gnathostomulids Rotifers http://www.divetrip.com/wakatobi/flatworm02.jpg http://www.dogbreedinfo.com/images14/TapewormImg_138 Platyhelminths : more flatworms (parasitic / free living) Molluscs: gastropods , bivalves, cephalopod s Annelids earth worms, leeches, polychaetes http://liberalbaptistrev.files.wordpress.com/2009/02/earthwo http://liberalbaptistrev.files.wordpress.com/2 http://s3.amazonaws.com/readers/2009/07 http://www.ucmp.berkeley.edu/sipuncula/sipunculids_big.jpg http://www.usp.br/cbm//images/rsgallery/display/echiura02....
View Full Document

Page1 / 56

DSML11-040510Development-1 - David Q. Matus April 5, 2010...

This preview shows document pages 1 - 16. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online