Answer:
C. Sugar-phosphate groups
Answer:
B. The ddNTPs lack a 3′ hydroxyl group.
Explanation:
Dideoxynucleotides is a family of inhibitors of the DNA polymerase, its official name is 2',3' dideoxynucleotides but they are commonly called ddNTPs. One of the main characteristics of this compound is the absence of the 3'-hydroxyl group in the deoxyribose, due to the absence of this group, it is impossible to form a phosphodiester bond between nucleotides and the DNA synthesis is stopped.
Using your reflexes can prevent you from getting hurt in the first place.
A sudden inrush of water could over whelm animals and possibly kill them if the water is of a different type.
The root tip allows the plant to grow deeper into the soil