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TLS Online TPP Program

#Id: 1645

Presentation of nonpeptide (lipid and lipid-linked) antigens derived from pathogens involves the nonclassical class I–like CD1 molecule.

#Unit 4. Cell Communication and Cell Signaling #MHC molecules #Part B Pointers
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TLS Online TPP Program

#Id: 2252

#Unit 11. Evolution and Behavior

Adaptive landscape- A surface in multidimensional space that represents the mean fitness of a population.
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.