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TLS Online TPP Program

#Id: 8036

Lys & Arg have four ionisations zones

1. 1--------pK1 – charge +2

2. pK1---------pK2 charge +1

3. pK2---------pKr charge 0

4. pKr---------14 charge -1


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TLS Online TPP Program

#Id: 9192

#Section 3: Genetics, Cellular and Molecular Biology

TLS Online TPP Program

#Id: 9193

#Section 3: Genetics, Cellular and Molecular Biology

The allelic frequency at equilibrium (qˆ) depends on the relative fitnesses (usually expressed as selection coefficients) of the two homozygotes:
TLS Online TPP Program

#Id: 9194

#Section 3: Genetics, Cellular and Molecular Biology

Hitchhiking
An important consequence of linkage disequilibrium is hitchhiking. This happens when an allele at  one locus spreads by natural selection acting on a second locus that is in linkage disequilibrium with  the first.
TLS Online TPP Program

#Id: 9195

#Section 3: Genetics, Cellular and Molecular Biology

Type of natural selection
1. Stabilized natural selection
2. Directional Natural selection
3. Disruptive Natural selection
4. Balance natural selection
TLS Online TPP Program

#Id: 9196

#Section 3: Genetics, Cellular and Molecular Biology

TLS Online TPP Program

#Id: 9197

#Section 3: Genetics, Cellular and Molecular Biology

Stabilized natural selection
Favor intermediate phenotype but eliminate lower and higher-grade phenotype
It introduced homogeneity in the population
Exp - clutch size of birds that lay too many or too few eggs per nest have lower fitness values than do those that lay an intermediate number of eggs