Which of the following is the role of free nucleotides in PCR?
A. To break the DNA into fragments
B. To cool the DNA during the reaction
C. To build new DNA strands during elongation
D. To stop the reaction from continuing
Select your answer:

Topics:
Organization of Systems Branches of Microbiology Male Reproductive System BMI (Body Mass Index) Parts of Human Body Life Processes - Digestion and Respiration History of Healthcare Body Movements Cardiac & Diseases of Blood Flow Biodiversity The Human Body The Cardiovascular System OCR A-level Circulatory and Nervous System Fat PsychologyOther quiz:
The Nervous System and The Senses › ViewAs organisms get more complex, cells become specialized to perform specific functions in the body. What is the function for the cell shown?
A. contract and shorten movement
B. provide coverage and protection
C. carry impulses around the body
D. connects parts together
Skin Structure › View
The principle functions of the skin are protection, heat regulation, and
A. secretion, absorption and temperature
B. secretion, absorption and elasticity
C. excretion, secretion, and absorption
D. absorption, secretion and preservation