I'll assume you're talking about the "double helix" structure which looks like a twisted ladder, rather than an electrophoresis gel plate film.
DNA is a double stranded sequence of nucleic acids... on one side a "protein code" is made using Adenine, Thymine, Guanine, Cytosine.
On one side, each of these nucleic acids is punctuated by a phosphate group.
Each "rung" on the ladder is formed by hydrogen bonds between one side and the other. Adenine bonds to Thymine and Guanine to Cytosine.
Hydrogen bonds are formed when an exposed hydrogen atom, which is covalently bonded to an electronegative atom, is in close proximity to another exposed electronegative atom. This happens because the hydrogen atom has a relatively positive charge and the juxtaposed electronegative atom is relatively... well, negatively charged.
what are 4 bases that make up the rungs of the DNA ladder
what are 4 bases that make up the rungs of the DNA ladder
The rungs of the DNA ladder are composed of alternating deoxyribose sugar molecules and phosphate groups.
Each rung of the DNA double helix is made up of a pair of nitrogenous bases (adenine-thymine or guanine-cytosine). The sides of the ladder are made up of alternating sugar (deoxyribose) and phosphate molecules. Hydrogen bonds hold the nitrogenous bases of the rungs together, creating the structure of the DNA double helix.
The rungs or steps of DNA are made up of nucleotide bases. There are four types of nucleotide bases: adenine (A), thymine (T), cytosine (C), and guanine (G). These bases pair up in a specific way (A with T and C with G) to form the rungs of the DNA ladder.
The rungs of the DNA ladder are made up of nitrogenous bases, specifically adenine (A) always pairs with thymine (T), and guanine (G) always pairs with cytosine (C). These base pairs are held together by hydrogen bonds, forming the double helix structure of DNA.
A DNA strand is made up of alternating sugar (deoxyribose) and phosphate molecules. The nitrogenous bases (adenine, thymine, cytosine, and guanine) are attached to the sugar molecules, forming the "rungs" of the DNA ladder.
Phospate groups and dioxyribose sugars. the "rungs" are made up of the four nitrogen bases--adenine, thymine, guanine and cytosine.
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.
thymines, guanines, adenines, and cytosines
The two chemicals that make up the rungs of the DNA ladder are adenine (A) paired with thymine (T), and guanine (G) paired with cytosine (C). These base pairs connect the two strands of the DNA double helix together.
The rungs of a DNA ladder are made up of nucleotide base pairs. These base pairs consist of adenine (A) paired with thymine (T), and guanine (G) paired with cytosine (C).