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TLS Online TPP Program

#Id: 5899


#Unit 3. Fundamental Processes #Mechanism of DNA synthesis in Prokaryotes #Part B Pointers
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TLS Online TPP Program

#Id: 2253

#Unit 11. Evolution and Behavior

Large changes in quantitative traits can occur by the evolution of allele frequencies without the addition of new mutations.
TLS Online TPP Program

#Id: 2254

#Unit 11. Evolution and Behavior

Frequency-dependent selection,
1.    Positive frequency
2.    Negative frequency
TLS Online TPP Program

#Id: 2255

#Unit 11. Evolution and Behavior

There are three basic modes of selection on a quantitative trait.
TLS Online TPP Program

#Id: 2256

#Unit 11. Evolution and Behavior

Overdominance, the heterozygote has higher fitness than the  fitness of the two homozygotes.
TLS Online TPP Program

#Id: 2257

#Unit 11. Evolution and Behavior

Underdominance, in which the heterozygote has lower fitness than both homozygotes.
TLS Online TPP Program

#Id: 2258

#Unit 11. Evolution and Behavior

Directional selection leads to fixation of the favored allele and elimination of the other allele.