Answer: Option B) each parental strand serves as a template for the synthesis of a complementary strand 
Explanation:
In semi-conservative DNA replication,
- a parent double-stranded DNA splits in two.
- Each strand is then read by the enzyme, DNA polymerase, to ensure accurate replication of a newly synthesized strand
- the new strand contains nucleotides that are complimentary to free nucleotides present in the parent strand.
Thus, option B perfectly describes semi-conservative replication of dna
 
        
             
        
        
        
Answer: South poles will attract the North pole of the magnet and the north pole will attract the South pole.
Explanation:
 
        
             
        
        
        
The answer is b!!!!!!!!!!
        
             
        
        
        
Answer:
they all have different charges
protons-positive
neutrons-neutral
electrons-negative