Answer:
regulates which materials enter and leave the cell
Answer:
Explanation:
The distance between the particles increases greatly, and the attractive forces between the particles decreases. an the molecules increase
Answer:
TCR
Explanation:
Helper T cells are the CD4T cells that are present in the inactive form. These cells have receptors for antigens on their surface. These antigen receptors are called T-cell receptors (TCRs). The function of TCR is to recognize and bind to specific foreign antigen fragments that are presented in antigen–MHC complexes. Different helper T cells have their unique TCRs to recognize a specific antigen–MHC complex. The CD4 proteins of helper T cells also interact with the MHC antigens and help maintain the TCR–MHC coupling.
The average families with blonde hair, pale skins with gene of past family freckles mixed with red hair ca male freckles
