See if there are effector T cells involved, some are cellular immunity and some are humoral immunity.
Preparation of routine antibody and monoclonal antibody. Simply put, the preparation of conventional antibodies is to infect animals with antigens and then extract them after they produce antibodies. Monoclonal antibody is the fusion of myeloma cells and B lymphocytes, and then cultured in vitro or in vivo to make them continuously produce antibodies and use them.
The callus has no fixed shape. Callus can redifferentiate under the action of various factors (plant hormones, etc.). ) form new plants.
This should be the content of elective one (I don't know if the textbook version is the same), extracting effective components from plants and extracting different substances from different parts, such as orange peel essential oil and rose essential oil from flowers. ......
The respiration rate of shade plants is generally lower than that of sun plants.
DNA probes can be combined with DNA and RNA (similar to the case of DNA replication and transcription, following the principle of base complementary pairing) to make probes with specific base arrangement order, which can not only combine with bacterial DNA/RNA, but also judge diseases.
Because when gamete is formed, the male parent only provides the nuclear gene, and the female parent will provide the nuclear gene and cytoplasmic gene, so the inheritance mode can be judged by reciprocal crossing.
Equivalent to antibody binding antigen. ......