I think that those are the results of the cross
YYRR : YyRr : yyrr
 1 : 2 : 1
 25% 50% 25%
 
        
        
        
Answer:
nitrogenous bases from the cytoplasm link up with an exposed complementary base
 
        
             
        
        
        
Answer:
Carbon Dioxide
Explanation:
google plus proof below I guess
<em><u>please mark brainliest</u></em>
 
        
             
        
        
        
Answer:
I am from Miami and I have been here for 6 yrs
Explanation:
Hbu?? : )
 
        
             
        
        
        
Answer:
When the required direction of transport is opposed to concentration levels, a cell <u>will </u> expend energy to force<u> ions</u> across its membrane.
Explanation:
If the concentration gradient is opposite to the direction of transport of minerals, then the cell will use energy to transport mineral ions from a lower concentration to a higher concentration. The most common process through which this happens is termed as the active transport. 
The process of active transport is opposite to passive transport. In passive transport, molecules move from a higher concentration to a lower concentration.