Double Helix :D
Double Helix
The whole DNA strand is a double helix.
The double helix structure is found in DNA molecules, which are located in the nucleus of a cell. The double helix is a twisted ladder shape that encodes genetic information.
The DNA structure is called a double helix. It consists of two strands that are twisted around each other, resembling a twisted ladder.
double helix
False. Helicases unwind the double helix of DNA by breaking the hydrogen bonds between the nitrogenous bases, not the nitrogen bonds that link the bases.
A nitrogen atom contains three valence electrons so a nitrogen molecule N2 will form a triple covalent bond.
Double Helix :D
Double Helix
The physical structure is called a double-helix.
The double helix is the twisted structure of two strands of DNA. For example, "Scientists discovered that DNA is composed of a double helix structure."
Enzymes that open the double helix by breaking hydrogen bonds between nitrogen bases are called helicases. Helicases are important during processes like DNA replication and DNA repair, where the DNA strands need to be unwound and separated.
The four nitrogen bases that make up the rungs of the DNA double helix are adenine (A), thymine (T), cytosine (C), and guanine (G). Adenine pairs with thymine, and cytosine pairs with guanine.
The central atom in the Lewis dot structure of nitryl chloride (ClNO2) is nitrogen (N). Nitrogen is bonded to one oxygen atom and one chlorine atom, while the other oxygen atom is bonded to nitrogen with a double bond. The remaining oxygen atom holds a lone pair of electrons.
Its actually two wi=ords; Thehy are 'Double Helix'.
The whole DNA strand is a double helix.