Experimentation to determine the temperature of stars
Answer:
Following are the four combinations of active or inactive regulatory proteins that could be present anytime in the cell:
Active repressor , Active activator.
Active repressor, Inactive activator.
Inactive repressor, Active activator.
Inactive repressor, Inactive activator.
Explanation:
Use the attached diagram for
explanations on the four combinations of active or inactive regulatory proteins in cells.
When antibodies bind antigens, the clumping of antigens results from the antibody having at least two binding regions.
What's the function of the antibody-antigen complex?
Antibodies serve two primary functions: selective binding to antigens to initiate an immune response and activation of other immune system components to combat infections.
- Immunoglobulins' capacity to combat a wide range of diseases is based on their inherent ability to distinguish between distinct antigens.
- Because of their antigen specificity and affinity, antibodies have shown to be a significant and important tool in research, diagnosis, and treatment.
- Although it appears to be a straightforward move, the connection of an antibody and its antigen to form an antigen-antibody complex is made up of a plethora of non-covalent interactions.
Hence, the correct answer is option A
Learn more about antibodies here,
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C.) The substrate for amylase, starch, is not present.