Answer:
DNA replication is important because without it, cell division could not occur. With DNA replication, the set of DNA of a cell can be duplicated and then each cell that results from division can have its own entire set of DNA, and cell division can theoretically continue indefinitely.
 
        
             
        
        
        
It is b . Because three of them are less than 90.
        
                    
             
        
        
        
Answer: hello some details relating to your question is missing below is the missing detail
DNA Sequence= 3’ - TACTAGTTGTGCATT - 5’
Complementary Sequence=5`-ATGATCAACACGTAA-3`
Answer : MINT 
Explanation:
The protein ( sequence of amino acids ) that resulted from your Translation is MINT 
The m-RNA Produced form the information above is: 
 5`-AUGAUCAACACGUAA-3`
While the Protein Sequence is Met-Ile-Asn-Thr which can be written as MINT 
 
        
             
        
        
        
The Major function of the respiratory system is to exchange oxygen and carbon dioxide. Inhaled oxygen enters the lungs and reaches the alveoli, the layers of the cells lining the alveoli and the surrounding capillaries are each only one cell thick and are in very close contact with each other, the barrier between air and blood averages about 1 micron in thickness. Oxygen diffuses quickly through the air-blood barrier into the blood in the capillaries. Similarly, carbon dioxide passes from the blood into the alveoli and is then exhaled.