An extra copy of chromosome 21 in humans causes
down syndrome
cystic fibrosis
hiv
none of the above

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen

What is it called when part of a cell membrane closes around a molecule to allow the molecule to enter the cell? a. passive transport b. diffusion c. endocytosis d. exocytosisc. endocytosis