Answer:
Positive selection involves targeting the desired cell population with an antibody specific to a cell surface marker (CD4, CD8, etc.). ... Negative selection is when several cell types are removed, leaving the cell type of interest untouched.
Answer:
have DNA, but are NOT large or complex
Explanation:
Answer:
Covalent bond
Explanation:
The answer is covalent bond
Answer:
cell wall
Explanation:
The cell wall is the protective, semi-permeable outer layer of a plant cell