Fact 1: Many nucleotides bind together to form a chain called a polynucleotide.

Fact 2: DNA strands are long polynucleotide chains.

Given the two facts above, answer the question "What is a DNA strand?" with the following options: 
- more abundant
 - Plant reproduction
 - keeping the dog warm
 - flow of electrons
 - Something to move
 - fertile
 - Polynucleotide
 - negative


 

       Polynucleotide  