Answer:
Both are correct
Explanation:
Not all are flowers in the path of engine progress and development. There is a phenomenon that haunts technicians since the beginning of engine development and, it seems, will always be present in the lives of those who work with the engines, this phenomenon is called abnormal combustion, also known as spark knock, ping, and detonation.
During abnormal combustion the increase in temperature and pressure within the combustion chamber which can cause serious engine damage.
 
        
             
        
        
        
Complete question:
You will find the complete question in the attached files, due to technical problems
Answer:
This conclusion is incorrect. Only half of the progeny will have a dominant and a recessive allele, Aa. The other half will carry two dominant alleles, AA. 
Explanation:
Due to technical problems, you will find the complete explanation in the attached files. 
 
        
             
        
        
        
Highly unlikely both parents have to be colorblind
        
             
        
        
        
Explanation:
At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 30 chromosomes