21.2 if you want it rounded to the tenths place 21.23722628 if not
        
                    
             
        
        
        
The answer is <span>Conduct a test cross with a purebred recessive plant. 
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Test cross is the cross between an organism with unknown dominant genotype and an organism with known recessive genotype.
<span>Since dominant trait results from a dominant allele, the test cross can determine if an unknown genotype is heterozygous and homozygous dominant. </span>
If A is dominant allele, and a is recessive allele, then AA is dominant homozygote, Aa is a heterozygote, and aa is recessive homozygote.
<span>According to the Punnett square, if all of the offspring are heterozygote (Aa), then unknown genotype is dominant homozygous (AA). If half of the offspring are the heterozygote, and the other half are recessive homozygote, then the unknown genotype is heterozygote (Aa).</span>
 
        
        
        
Answer:
The Scientific Adam refers to the most recent common ancestor of all males, given that some scientists theorize that all currently living men share the same mutations in their Y chromosome, proving that one man fathered all of humanity.
Identifying the Scientific Adam would be very important for both science and religion, as it would provide a bridge between these two often collided fields. The Scientific Adam proves the existence of the biblical Adam. 
 
        
                    
             
        
        
        
This would be an example of the symbiotic relationship mutualism because both organisms benefit and neither are harmed
        
             
        
        
        
More nitrogen in the atmosphere leads to NITRIC ACID RAIN.
When nitrogenous fertilizers are used on the farm, some gases are released into the atmosphere including nitric oxide. These gases rises up into the atmosphere, mix with rainfall.
 Nitric oxide react with rainfall to form nitric acid and it falls as acidic rain.