To perform a testcross, scientists cross an organism with an unknown genotype with a homozygous recessive organism.
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Answer:
 I think d . brain must be the ans
 
        
             
        
        
        
The answer is D. Species A will have fewer phenotypes.
Alleles are alternative forms of a gene. In species A, the leaf color is controlled by two alleles, for example, P and Q. They will have three possible genotypes - PP, PQ, and QQ. Three different genotypes give maximum three phenotypes.In species B, leaf color is controlled by three alleles, for example, L, M, and N. They will have six different genotypes - LL, LM, LN, MM, MN, and NN. Six different genotypes give maximum 6 phenotypes. 
        
                    
             
        
        
        
Answer:
It is Eris, a dwarf planet to but a bit bigger than Pluto, so the answer is D
Explanation: