You are probably thinking of DNA. The base pairs link the two strands together like a series of steps. However, since it is helical, it might be more accurate to compare it to a spiral staircase.
The steps of a DNA ladder are made up of alternating sugar (deoxyribose) and phosphate molecules. The side railing of the ladder is composed of nitrogenous bases (adenine, thymine, cytosine, and guanine) that connect the two strands of the DNA molecule.
the rails
In the Watson and Crick model of DNA, the steps of the ladder are composed of nucleotides. Each nucleotide consists of a sugar molecule (deoxyribose), a phosphate group, and one of four nitrogenous bases: adenine (A), thymine (T), guanine (G), or cytosine (C). These nucleotides are linked together through phosphodiester bonds to form the backbone of the DNA molecule.
DNA has a double helix structure, resembling a twisted ladder. The sides of the ladder are made up of alternating sugar and phosphate molecules, while the rungs are formed by pairs of nucleotide bases (adenine-thymine and guanine-cytosine). The specific sequence of these bases along the DNA molecule carries genetic information.
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.
The steps of a DNA ladder are made up of alternating sugar (deoxyribose) and phosphate molecules. The side railing of the ladder is composed of nitrogenous bases (adenine, thymine, cytosine, and guanine) that connect the two strands of the DNA molecule.
the rails
the rails
The sides of the ladder are made up of alternating deoxyribose sugar and phosphate molecules. The steps or rungs of the ladder are made up of nitrogenous bases held together by hydrogen bonds.
In the Watson and Crick model of DNA, the steps of the ladder are composed of nucleotides. Each nucleotide consists of a sugar molecule (deoxyribose), a phosphate group, and one of four nitrogenous bases: adenine (A), thymine (T), guanine (G), or cytosine (C). These nucleotides are linked together through phosphodiester bonds to form the backbone of the DNA molecule.
The 'steps' on the 'DNA Ladder' are made up of the four nitrogenous bases, Cytosine, Guanine, Thymine, and Adenine, while the pairing bases (Adenine & Thymine, Cytosine & Guanine) are bonded together with a hydrogen bond. The pairing bases (the 'rungs' of the ladder) are connected to the side posts of the ladder, which contain phosphate.
DNA molecules consist of chains of nucleotides arranged like rungs on a twisting ladder, forming the double helix structure. The nucleotides in DNA are made up of a phosphate group, a sugar molecule, and a nitrogenous base. The arrangement of these nucleotides determines the genetic information stored in the DNA molecule.
The steps on the DNA ladder are called nucleotides. Each nucleotide consists of a sugar molecule, a phosphate group, and a nitrogenous base (adenine, thymine, cytosine, or guanine). These nucleotides pair up to form the double helix structure of DNA.
The sugar-phosphate backbone of DNA is made up of alternating sugar (deoxyribose) and phosphate molecules. These molecules form the "rungs" of the DNA ladder, connecting the nitrogenous bases that make up the steps of the ladder.
The sides of the DNA ladder are made up of alternating sugar (deoxyribose) and phosphate molecules, linked together in a chain. These sugar-phosphate backbones provide the structural support for the DNA molecule.
The 'steps' or 'rungs' of the DNA 'ladder' are complimentary pairs of bases bonded by hydrogen bonds. The bases are Adenine, Thymine, Cytosine and Guanine. Adenine always bonds to Thymine and Cytosine always bonds to Guanine.
The 'steps' or 'rungs' of the DNA 'ladder' are complimentary pairs of bases bonded by hydrogen bonds. The bases are Adenine, Thymine, Cytosine and Guanine. Adenine always bonds to Thymine and Cytosine always bonds to Guanine.