Answer: organic 
Explanation: Its melting point is -44 °C
 
        
                    
             
        
        
        
Answer:
The enzyme is the pyruvate kinase
Explanation:
The designated enzyme can only grow in pyruvate or in ethanol. They are said to be in anaerobic conditions. If the end product of glycolysis is pyruvate and the enzyme that transforms phosphoenol pyruvate into pyruvate is called pyruvate kinase. In a reaction under anaerobic conditions, the pyruvate is transformed into ethanol. So if the pyruvate kinase enzyme is mutated, pyruvate cannot be transformed into ethanol and Saccharomyces cerevisiae could not survive in that medium.
 
        
             
        
        
        
Crossing over occurs but on in meiosis 1
        
             
        
        
        
Answer:
it is the x gene mutation 
 
        
             
        
        
        
Answer
A.
Explanation:
All of them have an a and only two have a B. Thats my best guess