Answer:Genetic information are transferred from nucleus to cytoplasm of cell through RNA. In eukaryotic cells, once precursor mRNA (pre-mRNA) has been transcribed from DNA, it is processed to mature mRNA. This removes its introns, non-coding sections, of the pre-mRNA.
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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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The answer for this question should be D) or the fourth option Protists.
        
                    
             
        
        
        
Answer:
The cytoplasm holds everything together in the cell. Without it, the organelles would not be able to stay in place.
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