developmental biology
TRANSCRIPT
![Page 1: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/1.jpg)
Developmental BiologyDevelopmental Biology
An IntroductionAn Introduction
![Page 2: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/2.jpg)
Animal DevelopmentAnimal Development How has the study of How has the study of
development changed?development changed?
![Page 3: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/3.jpg)
Animal DevelopmentAnimal Development
What kinds of questions areWhat kinds of questions aredevelopmental biologists asking?developmental biologists asking?
![Page 4: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/4.jpg)
Animal DevelopmentAnimal Development
How does the same genetic information result in different types of cells?
![Page 5: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/5.jpg)
Animal DevelopmentAnimal Development How is cell division regulated?How is cell division regulated?
![Page 6: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/6.jpg)
Animal DevelopmentAnimal Development How do cells form ordered structures?How do cells form ordered structures?
![Page 7: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/7.jpg)
Animal DevelopmentAnimal Development How are reproductive How are reproductive
cells set apart?cells set apart?
![Page 8: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/8.jpg)
Animal DevelopmentAnimal Development
How do changes in development create new
body forms and what changes are possible?
![Page 9: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/9.jpg)
Animal DevelopmentAnimal Development How do each of these contribute to the study How do each of these contribute to the study
of development?of development? comparative embryologycomparative embryology evolutionary embryologyevolutionary embryology teratologyteratology mathematical modelingmathematical modeling
![Page 10: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/10.jpg)
Comparative EmbryologyComparative Embryology
Epigenesis Epigenesis versus versus preformationpreformation
![Page 11: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/11.jpg)
Comparative EmbryologyComparative Embryology How does the concept of germ layers support epigenesis?How does the concept of germ layers support epigenesis? How does the concept of induction fit in here?How does the concept of induction fit in here?
![Page 12: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/12.jpg)
Comparative EmbryologyComparative Embryology What principles did What principles did von Baer articulate von Baer articulate with respect to vertebratewith respect to vertebratedevelopment?development?
![Page 13: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/13.jpg)
Comparative EmbryologyComparative Embryology General features of large group of animals General features of large group of animals
appear earlier than specialized features of appear earlier than specialized features of smaller groupsmaller group
Less general characteristics develop from Less general characteristics develop from more generalmore general
![Page 14: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/14.jpg)
Comparative EmbryologyComparative Embryology A particular type of embryo, instead of passing A particular type of embryo, instead of passing
through adult stages of a lower form, departs through adult stages of a lower form, departs more and more from it.more and more from it.
Embryo of higher animal is only like early Embryo of higher animal is only like early embryo of lower animal.embryo of lower animal.
![Page 15: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/15.jpg)
Comparative EmbryologyComparative Embryology How have fate maps How have fate maps
contributed to our contributed to our understanding of understanding of development?development?
![Page 16: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/16.jpg)
Evolutionary EmbryologyEvolutionary Embryology How have observations of embryos contributed to our How have observations of embryos contributed to our
understanding of evolutionary relationships?understanding of evolutionary relationships?
![Page 17: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/17.jpg)
Evolutionary EmbryologyEvolutionary Embryology Why is the distinction between analogous and Why is the distinction between analogous and homologous structures important?homologous structures important?
![Page 18: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/18.jpg)
TeratologyTeratology
How are malformations different from disruptions?
![Page 19: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/19.jpg)
Mathematical ModelingMathematical Modeling What’s the difference between isometric and What’s the difference between isometric and
allometric growth?allometric growth?
![Page 20: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/20.jpg)
Figure 1.20(1) Figure 1.20(1) Reaction-diffusion Reaction-diffusion System of Pattern GenerationSystem of Pattern Generation
![Page 21: Developmental biology](https://reader036.vdocument.in/reader036/viewer/2022062523/58ed0b4e1a28ab9e248b4595/html5/thumbnails/21.jpg)
Figure 1.22 Figure 1.22 Pigment patterns of zebrafish Pigment patterns of zebrafish homozygous for the wild-type allele (A) and for three homozygous for the wild-type allele (A) and for three
different mutant alleles (B–D) of the leopard genedifferent mutant alleles (B–D) of the leopard gene