The rungs of the ladder in a DNA molecule are made up of nitrogenous bases (adenine, thymine, guanine, and cytosine) that pair up with each other through hydrogen bonds. This base pairing forms the genetic code that carries the instructions for an organism's development and functioning. The sequence of these bases determines the genetic information stored in the DNA molecule.
Genes
On the side parts of the ladder-like DNA molecule, you will find the sugar-phosphate backbone, which provides structural support to the molecule. The sugar-phosphate backbone serves as the outer framework that holds the nitrogenous bases together in the DNA double helix.
DNA molecules are actually made up of nucleotides, which is the substance that is made up of three parts. Each nucleotide has a phosphate, a ribose sugar (five-carbon sugar) and a nitrogeneous base (purines-Adenine,Thymine or pyramidines-Guanine,Cytosine). Consider the DNA molecule as a twisted ladder (double helix). The sides of the ladder are actually the phosphate and ribose sugars, and the rungs of the ladder are complimentary nitrogeneous bases of each other. For example, if one side of the rung is the base Adenine, then the complimentary base will be Thymine, vice versa. It is the same for the pyramidines.
DNA is a molecule so no.
guanine, cytosine, thymine, adenine.
The nucleotide rung of a DNA molecule is attached to the DNA backbone that consists of alternating deoxyribose sugars and phosphate groups. The nucleotide rung itself is composed of a nitrogenous base (e.g., adenine, thymine, guanine, cytosine) attached to a sugar molecule.
The rungs that are in the DNA ladder molecule are nucleotides. They are adenine, guanine, thymine and cytosine. Deoxyribose and phosphate make up the backbone of the molecule.
Genes
The base of the nucleotides
A DNA molecule consists of two strands that are connected by hydrogen bonds between complementary bases. Each strand has a backbone made up of alternating sugar and phosphate groups, with bases extending inward. The number of rungs in a DNA molecule depends on the length of the molecule, with each base pair forming one "rung."
On the side parts of the ladder-like DNA molecule, you will find the sugar-phosphate backbone, which provides structural support to the molecule. The sugar-phosphate backbone serves as the outer framework that holds the nitrogenous bases together in the DNA double helix.
The DNA molecule consists of paired nucleotides that make each "rung" of the ladder. Each nucleotide is made up of a one of four nitrogenous bases (adenine, guanine, cytosine, or thymine), a five-carbon sugar (either ribose or 2'-deoxyribose), and a phosphate molecule.
DNA molecules are actually made up of nucleotides, which is the substance that is made up of three parts. Each nucleotide has a phosphate, a ribose sugar (five-carbon sugar) and a nitrogeneous base (purines-Adenine,Thymine or pyramidines-Guanine,Cytosine). Consider the DNA molecule as a twisted ladder (double helix). The sides of the ladder are actually the phosphate and ribose sugars, and the rungs of the ladder are complimentary nitrogeneous bases of each other. For example, if one side of the rung is the base Adenine, then the complimentary base will be Thymine, vice versa. It is the same for the pyramidines.
Nucleotides form a rung in the DNA ladder. Each nucleotide consists of a phosphate group, a sugar molecule, and a nitrogenous base. Two nucleotides pair up through hydrogen bonds to connect the two strands of DNA in a double helix structure.
DNA is a molecule so no.
In a helix spiral
guanine, cytosine, thymine, adenine.