Adaptation has costly side effects

TLS Online TPP Program

#Id: 2236

#Section 3: Genetics, Cellular and Molecular Biology

Highest rates of substitutions in regions of the gene that have the least effect on function, such as the third position of a codon, flanking regions, and introns.

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#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.

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#Id: 8408

#Section 3: Genetics, Cellular and Molecular Biology

Tropomyosin (TM) is a ropelike molecule, about 40 nm in length, binds to 7 actin subunits in an actin filament.

TLS Online TPP Program

#Id: 7750

#Section 2: General Biology

The greater the effective nuclear charge the more tightly an electron is held in by the nucleus because there is less electron shield between the valence electrons and the nucleus, and so, the smaller the radius.

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