In the first cross one of the parent has only dominant allele and one has only recessive allele that means the offspring in F1 will be 100% heterozygous
XxYyZz 
the gametes resulted from this individual are
XYZ XYz XyZ Xyz xYZ xYz xyZ xyz
it produces 8 types of gamets one of which is xyz the proportion is 1/8
 
        
             
        
        
        
Answer:
Polar bears eventually becoming extinct
 
Explanation:
 
        
             
        
        
        
Answer:
the answer is 21 :)
<em>hope this helps</em> ^^
 
        
             
        
        
        
Folds, wrinkles, etc! 
by folding the membrane of an organelle, surface area is optimized while volume remains the same. that is why mitochondria looks folded on the inside when you see pictures of it. the higher the surface area to volume ratio, the more efficient the organelle.
        
             
        
        
        
Answer:
monkey have tails and are smater than othe animilas
Explanation: