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TLS Online TPP Program

#Id: 7465

Secreted GABA then acts on prestalk cells to induce the cell-surface exposure of the serine protease domain of the ABC transporter TagC.

#Unit 5. Developmental Biology #Cell aggregation and differentiation in Dictyostelium #Part B Pointers
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TLS Online TPP Program

#Id: 9544

#Unit 11. Evolution and Behavior

Just as muscles become strengthened by work, more strongly exercised organs attract and become enlarged by the “nervous fluid.” 
Acquired during an individual’s lifetime, are inherited—a principle called inheritance of acquired characteristics.
TLS Online TPP Program

#Id: 9545

#Unit 11. Evolution and Behavior
TLS Online TPP Program

#Id: 9546

#Unit 11. Evolution and Behavior

In the most famous example of Lamarck’s theory, giraffes must have stretched their necks to reach foliage above them, and so their necks were lengthened

The longer necks were inherited, and over the course of generations, this process was repeated, and their necks got longer and longer. 
TLS Online TPP Program

#Id: 9547

#Unit 11. Evolution and Behavior
TLS Online TPP Program

#Id: 9548

#Unit 11. Evolution and Behavior

Neo-Lamarckism - August Weismann

cut off the tails of mice for many generations and showed that this mutilation had no effect on the tail length of their descendants.
TLS Online TPP Program

#Id: 9549

#Unit 11. Evolution and Behavior

Darwin’s evolutionary theory 

Evolution as such is the simple proposition that the characteristics of organisms change over time.