Answer:
a. purple allele (C) = 0.609, pink allele (c) = 0.391
b. purple homozygotes = 371, pink homozygotes = 153, heterozygotes = 476
Explanation:
Given - 
Purple flowers - 847
Pink flowers - 153
The frequency of recessive genotype i.e 

Frequency of recessive allele i.e q is equal to 

As per hardy Weinberg's first equilibrium equation - 

Frequency of purple homozygous species 

Number of purple homozygous species 
Number of pink homozygous species 
Heterozygous species is equal to 

 
        
                    
             
        
        
        
Answer:
Crude Oil/Petroleum
Explanation:
Crude oil is a very versatile fuel and is used to produce things like plastics, artificial food flavorings, heating oil, petrol, diesel, jet fuel, and propane.
 
        
                    
             
        
        
        
Answer:
Individuals who are heterozygous for co-dominant traits show in their phenotype both traits, without mixing.
Explanation:
Codominance is a type of inheritance that does not follow the rules of Mendelian inheritance, characterized by the absence of recessive traits and two different alleles for a character that behave as dominant.
Heterozygous individuals can be observed in codominance that show two different characteristics in their phenotype, without mixing, such as cattle with spotted skin or two colored flowers.