B cell Development

TLS Online TPP Program

#Id: 8758

#XL - T Zoology

The combined hydrophobic and hydrophilic tendencies of individual amino acid residues in proteins can be expressed as hydropathies. The greater a side chain’s hydropathy, the more likely it is to occupy the interior of a protein.

TLS Online TPP Program

#Id: 9153

#XL - T Zoology

TLS Online TPP Program

#Id: 9446

#XL - T Zoology

The cytokines form a family of relatively small, secreted signaling molecules:

Contain about 160–200 AA

4 long, conserved α helices

Control growth and differentiation

TLS Online TPP Program

#Id: 10097

#XL - T Zoology

Three major classes of animal-cell junctions: 

1. Anchoring junctions

2. Tight junctions

3. Gap junctions

TLS Online TPP Program

#Id: 7339

#XL - T Zoology

Positive assortative mating

Individuals' mate with others who are like themselves phenotypically for selected traits. The net effect of positive assortative mating is a progressive increase in the number of  homozygous genotypes (AA and aa)