TLS Online TPP Program

#Id: 10311

#Section 2: General Biology

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.

TLS Online TPP Program

#Id: 7965

#Section 3: Genetics, Cellular and Molecular Biology

Unassembled or misfolded proteins in the ER are often transported back to the cytosol, where they are degraded in the ubiquitin-proteasome pathway

TLS Online TPP Program

#Id: 10316

#Section 2: General Biology

TLS Online TPP Program

#Id: 10287

#Section 2: General Biology

T-Cell - Cells leaving the thymus are functional, mature T cells expressing unique and specific T-cell receptors (TCRs) that are both tolerant to self and restricted to self-MHC.