An arrangement of genes consisting of an operator, a promoter, and a repressor is an OPERON.
 
        
             
        
        
        
Water temperature and pressure determine how far sound travels in the ocean. ... The whale produces sound waves that move like ripples in the water. As the whale's sound waves travel through the water, their speed decreases with increasing depth (as the temperature drops), causing the sound waves to refract downward.
        
             
        
        
        
Answer:
<h2>L-A-D</h2>
Explanation:
Given:
In crossing over percentage equals to map unit, so  22 %  equals to 22 map unit.
A and L are 6 map unit are closest one.
L and D are farthest away  and have 27 map unit distance.
A-D =22 map unit
A-L = 5 map unit
L-d = 27 map unit
so the sequence of genes is  L-A-D