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What is the shape of a DNA molecule formed when two twisted DNA strands are coiled into a springlike structure and held together by hydrogen bonds between the bases?
Wiki User
∙ 14y ago
double helix
Wiki User
∙ 14y ago
The shape of a DNA molecule formed by two twisted strands coiled into a springlike structure and held by hydrogen bonds is called a double helix. The two strands run in opposite directions and are connected by complementary base pairs (adenine-thymine, guanine-cytosine). This structure allows for the genetic information to be stored and replicated accurately.
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The complementary base pairs in a DNA molecule are stabilized by?
The complementary base pairs in a DNA molecule are stabilized by hydrogen bonds between adenine and thymine, and between cytosine and guanine. These hydrogen bonds help hold the two strands of DNA together in the double helix structure.
How are the nitrogen bases held together in the center of the DNA molecule?
The nitrogen bases are held together in the center of the DNA molecule by hydrogen bonds. These bonds form between specific base pairs: adenine (A) with thymine (T), and guanine (G) with cytosine (C). The hydrogen bonds provide stability to the DNA double helix structure.
Why does a double stranded molecule denature into two single stranded molecules when heated?
Heating disrupts the hydrogen bonds holding the two strands together in a double-stranded molecule, causing them to separate into two single-stranded molecules. This process is known as denaturation, where the structure of the DNA or RNA molecule is altered due to the breakage of hydrogen bonds, leading to the unwinding of the double helix.
The two strands of a DNA molecule are held together by what?
The two strands of a DNA molecule are held together by hydrogen bonds between complementary base pairs. Specifically, adenine pairs with thymine, and guanine pairs with cytosine. This pairing allows for the twisting and unwinding of the DNA molecule during replication and transcription.
The two polynucleotide chains in DNA molecule are attracted to each other by what?
The two polynucleotide chains in a DNA molecule are attracted to each other by hydrogen bonding between complementary base pairs. Adenine pairs with thymine, and guanine pairs with cytosine, forming stable base pairs that help hold the two strands together.
Is hydrogen a molecule?
Yes, hydrogen can exist as a molecule. In its diatomic form, hydrogen atoms can bond together to form a molecule called molecular hydrogen (H2).
Bonds that hold DNA bases together?
Hydrogen bonds hold together the nucleotide bases in a DNA molecule. There are specific base pairings: adenine (A) pairs with thymine (T) and cytosine (C) pairs with guanine (G), connected by hydrogen bonds. These bonds contribute to the stability and structure of the DNA molecule.
What is the molecular structure of HCl?
HCl is a diatomic molecule composed of one hydrogen atom and one chlorine atom covalently bonded together. Its molecular structure is linear, with the hydrogen atom at one end and the chlorine atom at the other end.
What elements are H2?
H2 refers to a molecule of hydrogen gas, where two hydrogen atoms are bonded together covalently.
The two strands of a DNA molecule are held together by?
The two strands of a DNA molecule are held together by hydrogen bonds between complementary nitrogenous bases. Adenine pairs with thymine, and guanine pairs with cytosine. This base pairing allows the two strands to twist together in a double helix structure.
What holds two atoms in a hydrogen molecule?
A hydrogen molecule is held together by a covalent bond, where the two hydrogen atoms share their electrons in order to achieve a stable electron configuration. This shared pair of electrons creates a bond that keeps the atoms together.
Is hydrogen peroxide an atom or an molecule?
Hydrogen peroxide is a molecule. It consists of two hydrogen atoms and two oxygen atoms bonded together.
What helps molecule stick together?
Hydrogen bonds
Is hydrogen a molecule and or compound or element?
Hydrogen is an element because it is made up of only one type of atom, which is hydrogen itself. When two hydrogen atoms bond together, they form a hydrogen molecule (H2). So, hydrogen can exist as both an element and a molecule.
What holds the atoms in a molecule of methane together?
The atoms in a molecule of methane are held together by covalent bonds. In methane, a carbon atom is bonded to four hydrogen atoms through sharing of electrons, forming a stable structure. These covalent bonds provide the necessary attraction to hold the atoms together in a molecule.
Why the mass of hydrogen molecule is greater then the mass of hydrogen atom?
The mass of a hydrogen molecule is greater than that of a single hydrogen atom because a hydrogen molecule consists of two hydrogen atoms bonded together. When two hydrogen atoms bond to form a molecule, they share electrons, resulting in a decrease in the individual mass of each atom. However, the total mass of the molecule is slightly higher due to the binding energy that holds the atoms together.
How many water molecules bond together to form an ice crystal?
Ice crystals are made up of many water molecules bonded together in a hexagonal lattice structure. Each water molecule in the lattice is connected to four neighboring water molecules through hydrogen bonds, creating a rigid and ordered structure typical of ice.
