Themes of developmental biology 6-10 by Erica Crespi https://padlet.com/ejcrespi/u0f7u9304ra4 Please post examples for each here en-us 2017-11-29 17:13:13 UTC 2017-12-10 04:08:54 UTC hello@padlet.com 6. Powerful entities must be powerfully regulated ejcrespi https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211513084 2017-11-29 17:15:23 UTC https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211513084 7. Two negatives equal a positive ejcrespi https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211513281 2017-11-29 17:15:43 UTC https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211513281 8. There have to be both pushes and pulls in development ejcrespi https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211513418 2017-11-29 17:15:55 UTC https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211513418 9. Animals inherit a "program" by which development occurs but each individual has the ability to improvise. ejcrespi https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211513681 2017-11-29 17:16:22 UTC https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211513681 10. There are many paths to the same goal. ejcrespi https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211513878 2017-11-29 17:16:45 UTC https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211513878 https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211534609 So that development happens in the right place at the right time.]]> 2017-11-29 17:52:46 UTC https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211534609 https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211536798 Repression of a repressor.
Example: SRY represses Dickkopf (a Wnt repressor) ]]> 2017-11-29 17:56:28 UTC https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211536798 https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211538162 Signals that induce metamorphosis while inhibiting a different kind of metamorphosis.]]> 2017-11-29 17:58:29 UTC https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211538162 Example https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211538419 B-catenin stimulates genes for ovarian development while simultaneously inhibiting Sox9 for testes pathway.]]> 2017-11-29 17:58:57 UTC https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211538419 Example https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211539151 Early metamorphosis in frogs due to drought.]]> 2017-11-29 17:59:58 UTC https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211539151 Example https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211539599 Eyespots on the wing of a butterfly due to temperature]]> 2017-11-29 18:00:48 UTC https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211539599 Example: adult frog https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211540119 -Metamorphosis from a tadpole
-Direct development from egg to adult form]]> 2017-11-29 18:01:38 UTC https://padlet.com/ejcrespi/u0f7u9304ra4/wish/211540119 Example https://padlet.com/ejcrespi/u0f7u9304ra4/wish/214760029 The endoblast replaces the hypoblast, which stops Cerberus, which is inhibiting Nodal from the epiblast. Nodal starts primitive streak formation. Nodal is induced by Vg-1 and Wnts]]> 2017-12-10 04:07:23 UTC https://padlet.com/ejcrespi/u0f7u9304ra4/wish/214760029