The surface zone has the ocean's least dense water and represents approximately 2% of the total volume of ocean water. The surface zone usually ranges between depths of 500 feet to 3,300 feet below ocean surface, but this can vary a great deal.
A hypha (plural hyphae, from Greek á½ÏÎ®, huphá¸, âwebâ) is a long, branching filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium. Yeasts are unicellular fungi that do not grow as hyphae.
DNA helicase unzip, or separate, a strand of DNA at positions  called origins. This means that the hydrogen bonds between  complementary base pairs are removed (DNA is dou â¦ ble stranded!). When they separate double-stranded DNA into single strands, it  allows each strand to be copied (replication).he job of Helicase is to unzip the DNA strand â¦ by breaking the hydrogen bonds that hold them together, and it does this by moving along the strand of DNA, very much like on an actual zipper.