Answer:
C: A change in scientific evidence regarding the theory.
 
        
             
        
        
        
The correct answer is sex linkage.  
Sex linkage refers to the phenotypic expression of an allele, which relies upon the gender of an individual and is directly associated with the sex chromosomes. These genes are regarded sex-linked as their expression and patterns of inheritance vary between the males and females. The sex linkage cannot be the same as genetic linkage, the sex-linked genes can be associated genetically.  
 
        
                    
             
        
        
        
The answer is A, Genetic diversity in the new insect population will be lower due to the founder effect
        
                    
             
        
        
        
Answer:
 500
Explanation:
Mutation rate is largely known as changes that occur in the frequency of a particular gene over an extended period of time 
So given that; 
the  mutation rate of a particular gene = 1 × 10⁻⁶
The expected mutations after 500 million sperm are examined will be:
= (1 × 10⁻⁶)×(500,000,000)
= 500
Thus, The expected mutations  = 500