Nitrogen bases which are joined together by hydrogen bonds
These bases are:
Adenine (A)
Guanine (G)
Thymine (T) - replaced by uracil in RNA
Cytosine (C)
Uracil (U) - replaces thymine in RNA
A = T there are 2 hydrogen bonds between A & T
G ≡ C there are 3 hydrogen bonds between G & C
The DNA ladder is made of sugar and phosphates.
The steps of the DNA ladder are made up of nitrogenous bases. These bases include adenine, thymine, cytosine, and guanine. They pair up in a specific manner where adenine pairs with thymine, and cytosine pairs with guanine.
Because it is formed of pairs of parallel lines.
A covalent double bond is formed.
The twisted ladder shape of DNA is called a double helix.carbohydrate
The enzyme helicase separates the nitrogen base pairs, or rungs, of the DNA ladder.
Adeninine - Thiamine and Guanine - Cytosine pairs.
The Base Pairs
Covalent bond
The four molecules that make up the rungs of the DNA ladder are adenine, thymine, guanine, and cytosine. Adenine pairs with thymine, and guanine pairs with cytosine through hydrogen bonding to form the base pairs of the double helix structure.
Yes, the rungs of the DNA ladder consist of pairs of nitrogen bases.
False. In a DNA molecule, guanine pairs with adenine.