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TLS Online TPP Program

#Id: 9279

The binding of Nod factors to the Nod factor receptors (NFRs), which contain extracellular LysM motifs, initiates an interaction with the conserved SYMRK receptor-like kinases containing a leucine-rich repeat (LRR) domain.

#Section 2: General Biology #Nitrogen Metabolism & Biological Nitrogen fixation #Part B Pointers
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TLS Online TPP Program

#Id: 9184

#Section 3: Genetics, Cellular and Molecular Biology

TLS Online TPP Program

#Id: 9185

#Section 3: Genetics, Cellular and Molecular Biology

Proportional contribution of genotypes to population
TLS Online TPP Program

#Id: 9186

#Section 3: Genetics, Cellular and Molecular Biology

Relative genotypic frequency after selection
TLS Online TPP Program

#Id: 9187

#Section 3: Genetics, Cellular and Molecular Biology

Positive Selection: The Spread of Beneficial Mutations
TLS Online TPP Program

#Id: 9188

#Section 3: Genetics, Cellular and Molecular Biology

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

#Id: 9189

#Section 3: Genetics, Cellular and Molecular Biology

Overdominance the heterozygote has higher fitness than the  fitnesses of the two homozygotes
Underdominance, in which the heterozygote has lower fitness than both homozygotes.
Directional selection leads to fixation of the favored allele and elimination of the other allele, as  long as no other evolutionary forces act on the population.