Chemical barriers at these surfaces include specialized soluble substances that possess antimicrobial activity as well as acid pH.

TLS Online TPP Program

#Id: 7881

#Unit 2. Cellular Organization

MICOS mediates close juxtaposition of the outer membrane and inner membrane by binding to outer membrane–associated proteins

TLS Online TPP Program

#Id: 10324

#Unit 4. Cell Communication and Cell Signaling

PD-1 has a structure similar to CTLA-4 and when activated negatively regulates T-cell function by inducing apoptosis of activated T cells. 

TLS Online TPP Program

#Id: 4624

#Unit 13. Methods in Biology

One limitation of rocket electrophoresis is the need for the antigen to be negatively charged for electrophoretic movement within the agar matrix

TLS Online TPP Program

#Id: 3245

#Unit 3. Fundamental Processes

Common types of hydrolytic DNA damage.

Deamination of cytosine creates uracil

Depurination of guanine by hydrolysis creates apurinic deoxyribose

Deamination of 5-methylcytosine generates a natural base in DNA, thymine

TLS Online TPP Program

#Id: 832

#Unit 4. Cell Communication and Cell Signaling

Biotrophy where the plant cells remain alive throughout infection