<span>If you place flaccid plant cells in pure water, water moves into the cell because it has a lower concentration of a solution than a concentration inside the cell. This solution (pure water) is called hypotonic solution. As a result, the cell is swelling.</span>
        
             
        
        
        
Explanation:
Genetically modified crops are plants used in agriculture, the DNA of which has been modified using genetic engineering methods. Plant genomes can be engineered by physical methods or by use of Agrobacterium for the delivery of sequences hosted in T-DNA binary vectors.
 
        
                    
             
        
        
        
Answer: Option C) Reduction is the gain of electrons.
Explanation:
Reduction is a process involving a gain of electron(s), while oxidation involves a loss of electron(s).
Thus, an oxidizing agent is a substance that accepts electron(s) and become reduced, while a reducing agent is a substance that donates electron(s) and so becomes oxidized.
Thus, reduction is the gain of electron(s)