Answer:
Explanation:
A Punnett square shows the probability of an offspring with a given genotype resulting from a cross. It does not show actual offspring. ... The probability that the first offspring will have the genotype “aa” is 25% and the probability of the second offspring having the genotype “aa” is still 25%.
 
        
             
        
        
        
Answer:The tails
Explanation:
they face inward on the plasma membrane and are hydrophobic because they repel water.
 
        
                    
             
        
        
        
Are you looking for the term for a chemical pollutant?
        
             
        
        
        
those are nucleotides 
since all three of them contain deoxyribose (because there's only one hydroxil group) they are DNA nucleotides
the first nucleotide has cytosine as it's nitrogenous base 
the second nucleotide has adenine as it's nitrogenous base 
the third nucleotide has thymine as it's nitrogenous base