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TLS Online TPP Program

#Id: 10389

Class II, but not class I, presentation is inhibited by treatment of the cells with an agent that blocks endocytic processing within the cell (chloroquine).

#Section 2: General Biology #Major histocompatibility complex #Part B Pointers
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TLS Online TPP Program

#Id: 9179

#Section 3: Genetics, Cellular and Molecular Biology

Fitness- Average number of offspring produced by a genotype and divide it by the mean number of offspring produced by the most prolific genotype
TLS Online TPP Program

#Id: 9180

#Section 3: Genetics, Cellular and Molecular Biology

Average fitness
In a species, only 1 of every 1000 seeds survives to reproductive age, and that those that survive produce an average of 3000 seeds. 
TLS Online TPP Program

#Id: 9181

#Section 3: Genetics, Cellular and Molecular Biology
TLS Online TPP Program

#Id: 9182

#Section 3: Genetics, Cellular and Molecular Biology

Selection coefficient
A related variable is the selection coefficient (s), which is the relative intensity of selection against a  genotype
TLS Online TPP Program

#Id: 9183

#Section 3: Genetics, Cellular and Molecular Biology

The selection gradient measures the strength of directional selection acting on a quantitative trait.
TLS Online TPP Program

#Id: 9184

#Section 3: Genetics, Cellular and Molecular Biology