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BIOL 130 (308)
Lecture

Outline of Lecture 05

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Department
Biology
Course
BIOL 130
Professor
Barry Mc Clinchey
Semester
Fall

Description
Outline of Lecture 05 Principles of Development I. Overview - Cell-cell interactions determine decisions to apoptose, differentiate, migrate, and fuse II. Induction - First observed by Spemann and Mangold in 1920’s - Induction is when an inducing tissue causes a competent responding tissue to alter its differentiation - Induction is widespread and is a key way of controlling embryonic development - There are two types of induction 1) Instructive: specific inducing signal required for response, usually early dev. 2) Permissive: nonspecific signal can produce progression to final differentiated state, usually later dev. III. Mesoderm Induction - Mesoderm induction in Xenopus can be
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