The ratio of purple to white from a heterozygous purple flower crossed with another heterozygous purple flower would be 3:1. Heterozygous refers to having inherited two different forms of a particular gene, one from each parent.
The opposite is a homozygous genotype, where the living being inherits identical forms of a particular gene from the father and the mother,
        
                    
             
        
        
        
 The ocean waves will bounce off the rocks and scatter.
 
        
                    
             
        
        
        
The drug that to a receptor in the nucleus. This binding makes on a gene to make a protein. This drug is actually lipophilic and hydrophobic, the correct option is A.
What is receptor?
In biochemistry and pharmacology, receptors are protein-based chemical frameworks that transmit and receive signals that can be assimilated into biological systems.
As the drug is crossing the lipid membrane so it should be lipophilic and hydrophobic to be able to bind the receptor as in the given situation.
Thus, the correct option is A.
For more details regarding a receptor, visit:
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