Answer:
peptide antigens by MHC class II molecules
Explanation:
Helper T cells are activated by peptide antigens by MHC class II molecules. These antigens express on the surface of antigen-presenting cells (APCs). After activation, the T helper cells divide and secrete cytokines to assist the immune response.
Answer:
Bread, Fuels, Wine
Explanation:
It helps bread rise. Fuel=new developments in biofuel. Wine, yeast is used to differentiate the grape juice from wine.
There should be 3 genes involved in the seven phenotypic categories
A gamete would correctly be called a SEX CELL.
The cells from the male and female parents which combine to form zygote are called gametes. The male gamete is called sperm while the female gamete is called egg. Both sex cells combine together during fertilization to form the zygote.
