A molecule that the immune system recognizes either as part of the body or as coming from outside the body:
A. Antigen
B. Antibodies
C. Antibiotics
D. Antipaths
Select your answer:
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Cell Structure and Function › Viewsuspends organelles in the cell
A. cytoplasm
B. cell membrane
C. cell wall
D. ribosomes
Genetic Engineering › View
what is the correct sequence of steps in genetic engineering?
P: inserting the desired gene into a vector
Q: Cutting out the DNA of the desired gene
R: Multiplying the copies of the gene
S: Introducing the vector into the host cell
A. P, Q, S, R
B. P, R, Q, S
C. Q, P, S, R
D. Q, R, P, S