How are the two sides of the DNA ladder connected?
How are the two sides of the DNA ladder connected?
The two sides of the DNA ladder are held together loosely by hydrogen bonds.
What are the sides of the DNA ladder made of quizlet?
The two sides of the DNA ladder are made up of molecules of a sugar called deoxyribose, alternating with molecules known as phosphates.
What are the sides of the DNA ladder backbone made of?
DNA consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases–adenine (A), cytosine (C), guanine (G), or thymine (T).
Why is DNA shaped like a twisted ladder?
Guanine makes 3 hydrogen bonds with cytosine, and adenine makes 2 hydrogen bonds with thymine. I became convinced that base pairing was the key to DNA’s structure. So, DNA is like a twisted ladder, where the sugar and phosphate are the rails, and the base pairs are the rungs.
What makes up the sides of the DNA ladder?
It has an alternating chemical phosphate and sugar backbone, making the ‘sides’ of the ladder. (Deoxyribose is the name of the sugar found in the backbone of DNA.) In between the two sides of this sugar-phosphate backbone are four nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G).
What makes up the sides of the ladder?
It has an alternating chemical phosphate and sugar backbone, making the ‘sides’ of the ladder. (Deoxyribose is the name of the sugar found in the backbone of DNA.) In between the two sides of this sugar-phosphate backbone are four nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G).
What does DNA look like in a cell?
When isolated from a cell and stretched out, DNA looks like a twisted ladder. This shape is called a double helix. The sides of the DNA ladder are called the backbone and the steps (also called rungs) of the ladder are pairs of small chemicals called bases. There are four types of chemical bases in
What makes up the backbone of a DNA molecule?
The DNA molecule consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases–adenine (A), cytosine (C), guanine (G), or thymine (T).