Answer:
C) 2.0 kb 
Explanation:
It is given that out of the 4 nucleotides A, T, C & G each one has equal probability to occur at any position on the DNA molecule which simply means that the probability of occurrence of any nucleotide at a position is 1/4.
Also, it is given that probability of occurrence of either A or T at 3rd position is equal which means that the probability at that particular position will be 2/4 = 1/2. 
Now, GA(A/T)TC is the DNA sequence where Restriction enzyme HinfI cleaves so the total probability of an average HinfI cleavage fragment will be = 1/4 x 1/4 x 1/2 x 1/4 x 1/4 = 0.00195 = 0.2 i.e. 2 kb.
 
        
             
        
        
        
Your answer would be C. because the rest of potential energy. This one is not stored energy, it's kinetic.
Hope this helps; have a great day!
 
        
                    
             
        
        
        
Answer:
C. The upper part of the water column represents areas of high sunlight penetration.
Explanation:
I just took the test and checked my answers. 
 
        
             
        
        
        
When a child swallow a dish soap the good advice is to call
poison control. There are also different reason why e get poisoned, during a
health symposium a nurse teaches the group how to prevent food poisoning. The
nurse evaluates that the teaching is understood when one of the participants states
"Meats and cream-based foods need to be refrigerated."
 
        
             
        
        
        
I think the answer is sexual reproduction to carry out selective breeding.