TLS Online TPP Program

#Id: 7928

#Section 3: Genetics, Cellular and Molecular Biology

Muscle cells have an abundant, modified smooth ER called the sarcoplasmic reticulum.

The release and reuptake of Ca2+ by the sarcoplasmic reticulum trigger myofibril contraction and relaxation, respectively

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.

TLS Online TPP Program

#Id: 7931

#Section 3: Genetics, Cellular and Molecular Biology

Microsomes

when cells are homogenized, the rough ER breaks up into small closed vesicles with ribosomes on the outside

TLS Online TPP Program

#Id: 7331

#Section 3: Genetics, Cellular and Molecular Biology

Assumptions—If a population is large, randomly mating, and not affected by  mutation, migration, or natural selection.

Prediction 1 —The allelic frequencies of a population do not change

Prediction 2- The genotypic frequencies stabilize after one  generation in the proportions p2, 2pq, and q2.

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.