Mutation, that causes transformation of an ... The homeobox encodes a 60 AA length homeodomain = a DNA-binding helix turn helix ... This pattern is the zootype. ...
Lecture 11: Gap Gene Function and the Control of Pair Rule and Homeotic Selector ... simple patterns (anterior posterior, dorsal--ventral) early and use to elaborate ...
Model of Drosophila Anterior-Posterior Pattern Formation Maternal effect genes Zygotic genes Syncytial blastoderm Cellular blastoderm Homeotic transformation of the ...
Activation of Floral Organ Identity (Homeotic) Genes (ABC model) Summary: Genetics of Flowering Activation of Genes Controlling the Spatial Arrangement of the Four ...
... the segmentation gene ftz(fushi tarazu) and the homeotic gene Antp. ... Many homeotic regulatory proteins interact with Exd and bind a composite Exd-Hox ...
This is not a morphogen like bicoid in drosophila, ... to the spatial expression patterns Labial anterior Abd B posterior Mammals have homeotic genes call Hox genes.
Develops from midline located just above the notochord ... Development of C. elegans, a Nematode. Homeotic Genes. Homeotic Genes control pattern formation ...
Cell fates are specified by particular combinations of homeotic gene ... PcG mediated gene silencing can be ... Ezh1; Ezh2 (human); clf (Arabidopsis) extra sex ...
Nematode: ~1220. Fruitfly: ~170. Homeotic Genes. Genes in which a mutation can transform one body ... In nematode: ~1220 functional genes but 419 pseduogenes ...
Homeotic Genes and Animal Body Plans. Multicellular animals develop in four dimensions. ... ventral side of segment. Ubx and abdA not expressed. in posterior segments ...
Biol/Chem 473 Schulze lecture 8: Chromatin remodelling Spreading of heterochromatin in flies (and humans!) Spreading of silenced chromatin on a homeotic gene ...
Title: PowerPoint Presentation Author: Jon Scales Last modified by: jon.scales Created Date: 10/25/2000 2:21:41 AM Document presentation format: On-screen Show
As development proceeds, ... Expression of eyeless in Other Tissues Causes Formation of Extra Eyes Mammalian Homologues of eyeless The mouse homologue of eyeless, ...
... in normal flower development, it acts as a regulator of floral homeotic genes ... A zinc finger is a large superfamily of protein domains that can bind to DNA. ...
Developmental Genetics Topics : I. Genetic Basis of Differentiation II. Control of Gene Expression in Differentiation III. Nature of Determination Development ...
KEY CONCEPT Animals are diverse but share common characteristics. Animals are the most physically diverse kingdom of organisms. Animals range in size from 25-meter ...
Title: Development and Evolution Author: firestonel Last modified by: firerock Created Date: 3/28/2002 2:37:28 PM Document presentation format: On-screen Show (4:3)
... 1 Information deposited by the mother in the egg (cytoplasmic determinants) is required for embryonic development. 21.2 2 If you clone a carrot, ...
Lecture 10 Types of lineage mutants Lateral inhibition in C. elegans Induction in C. elegans Mutant names and origins Most isolated in general mutant screens unc ...
Title: Developmental Genetics Author: Korakod Last modified by: Korakod Created Date: 10/25/2000 9:53:00 AM Document presentation format: On-screen Show
Animal gametogenesis and embryology (chapters 25, 32, 47) What is an animal? ... nervous and muscle tissues are unique. distinctive stages of development ...
The Origin of Species Species Biological Species Ring Species Barriers Prezygotic Habitat Isolation Behavior Isolation Temporal Isolation Mechanical Isolation Gametic ...
... (ICM) flattens into disc Gastrulation & development forms embryo and membranes (besides chorion) PRIMATIVE STREAK Gastrulation (folding inward) ...
61% of human disease genes have a fly counterpart. Developmentally ... Xenopus. C. elegans. Conserved homeobox DNA binding domain. A Few Questions for Thought ...
... Cell Division, and Cancer, continued Gene Expression in Cancer Unlike normal cells, cancer cells continue to divide indefinitely, even if they become densely ...
The Drosophila SWI/SNF ATPase Brahma localizes to active regions of the genome ... 'Imitation switch' isolated first in Drosophila by homology with SWI/SNF ...
... figured out the details involved in the genetic control of development in model systems such as the fruitfly Drosophila ... actions on insulin and ...
Which group of organisms does each model represent? What features of Drosophila melanogaster, Caenorhabditis elegans, Mus musculus, ... Pitx1 (Stickleback fish) ...
Title: Wednesday, September 5 Last modified by: pbishop Created Date: 8/16/2006 12:00:00 AM Document presentation format: On-screen Show (4:3) Other titles
DNA and Gene Expression DNA Deoxyribonucleic Acid Double helix Carries genetic information Located in the nucleus The monomer is a nucleotide A phosphate A ribose ...
Chapter 15 Controls over Genes When DNA Can t Be Fixed? Changes in DNA are triggers for skin cancer, like the most deadly type malignant melanoma Cancers: are ...
Origin of Species How do we define species? A population of organisms that produces viable fertile offspring in nature. When does this definition fall apart?