Answer:True 
Explanation:Basically thymine diamers are mismatched pairs (thymine binds with another thymine instead of binding with adenine) and may lead to unwanted results so the mismatching can be repaired by using two methods which are as follows :
1-the PRE enzyme activated by blue light breaks the thymine diamer and some of the surrounding bonds the strand is cut and DNA polymerase then restores the normal base pairing 
2-UVR system breaks dimer creating a gap when a gap is created and the molecules appear unpaired it is filled by proof readers hence restoring normal base pairing. 
 
        
             
        
        
        
Answer:
The axial skeleton includes all the bones along the body's long axis. ... The axial skeleton includes the bones that form the skull, laryngeal skeleton, vertebral column, and thoracic cage. The bones of the appendicular skeleton (the limbs and girdles) “append” to the axial skeleton.
Explanation:
 
        
             
        
        
        
Mitosis:Two diploid cells with identical genetic information
MeiosisFour haploid cells with different genetic information.
 
        
             
        
        
        
Answer:
depending on which dog, depending on the color of the parents, maybe it is such that one of the parents is white and the other is red and they will have a black puppy 
 
        
             
        
        
        
Answer:protection from other predators.
Explanation: the quills will stick into a predator that attack the porcupine Note: it does NOT shoot its quills