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TLS Online TPP Program

#Id: 1059

Tbx stands for “T-box,” a specific DNA-binding domain.

#Unit 5. Developmental Biology #Tetrapod Limb Development #Part B Pointers
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TLS Online TPP Program

#Id: 7032

#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: 7033

#Unit 11. Evolution and Behavior
TLS Online TPP Program

#Id: 7034

#Unit 11. Evolution and Behavior
TLS Online TPP Program

#Id: 7035

#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: 7036

#Unit 11. Evolution and Behavior

 Alfred Russel Wallace - Who was collecting specimens in the Malay Archipelago, had independently conceived of natural selection.
TLS Online TPP Program

#Id: 7037

#Unit 11. Evolution and Behavior

Darwin’s evolutionary theory - Evolution as such is the simple proposition that the characteristics of organisms change over time. 

Geometric increase 

Limited food & Space

Struggle for existence 

Variation 

Natural selection

Inheritance of useful characters

Speciation