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it is made up of phosphate and purine bases

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13y ago

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What are the rings of DNA made from?

If you mean the rungs of the twisted ladder model, they are made of the nitrogen bases of both strands held together by hydrogen bonds.


What are the rails of the ladder made of?

The hydrogen bonds that "tie" the two DNA strands together; 2 for A and T and 3 for C and G.


How many strands are there in DNA?

DNA is made up of two strands.


How many strands does DNA have what is its shape?

DNA has two strands that form a double helix shape. The double helix structure is like a twisted ladder, with two strands of nucleotides connected by hydrogen bonds and coiled around each other.


What are the sides of the DNA ladder are made up of?

The DNA ladder is made of sugar and phosphates.


What hold the side of DNA ladder together?

what holds the sides of the DNA ladder together


What substances makes up the steps of a DNA ladder?

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.


How do you describe the basic structure of the DNA molecules?

DNA is composed of two strands of DNA nucleotides, arranged into a double helix, often referred to as a twisted ladder. The sides of the ladder are composed of alternating deoxyribose sugar molecules and phosphate molecules, and the rungs of the ladder are the pairs of nitrogen bases. The two strands of DNA nucleotides are held together by hydrogen bonds which form between the paired nitrogen bases.


The twisted ladder shape of the dna is called?

The twisted ladder shape of DNA is called a double helix.carbohydrate


Is DNA a single stranded molecule?

Yes, DNA is double-stranded.There are two strands. Each one is a polymer (series) of nucleotides, and the two strands twine round one another to form the DNA molecule.


How did James Watson discover DNA?

James Watson and Francis Crick discoverd the two strands of nucleotides that form a twisted ladder (double helix) in DNA


what are the ''rungs'' of the DNA ladder made of?

nucleotitdes