<em>One of the strands is inverted. Both the strands are anti-parallel to each other.</em>
Explanation:
Deoxyribonucleic acid (DNA) is a double helix structure made up of two strands. Both the strands remain intact due to the hydrogen bonding present in them.
Both the strands are anti-parallel to each other. One strand runs in the 5'-3' direction and is known as the leading strand. The other strand runs in 3'-5' direction and is known as the lagging strand. Hence, both the strands have an opposite orientation.
body's immune system trying to protect the wound from infection. The wound becomes red because blood vessels are opening so blood can bring oxygen and nutrients to the cut area, oxygen is needed for healing.