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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
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Sides of the ladder are formed by?
The DNA ladder is made of sugar and phosphates.
What substances make up the steps of the DNA ladder?
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.
Why is a parallelogram called a parallelogram?
Because it is formed of pairs of parallel lines.
What is formed when two atoms sharing two pairs of electrons called?
A covalent double bond is formed.
The twisted ladder shape of the dna is called?
The twisted ladder shape of DNA is called a double helix. It is made up of two intertwined strands that are connected by hydrogen bonds between complementary base pairs.
What specifically breaks the rungs of the DNA ladder?
The enzyme helicase separates the nitrogen base pairs, or rungs, of the DNA ladder.
What are the rungs of the DNA ladder?
Adeninine - Thiamine and Guanine - Cytosine pairs.
What makes up the inside ladder part of the DNA?
The Base Pairs
What four molecules make up the rungs of the ladder?
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.
Bond formed when atoms share one or more pairs of electrons is called an..?
Covalent bond
Are nitrogen bases are located in the central rungs of a DNA ladder?
Yes, the rungs of the DNA ladder consist of pairs of nitrogen bases.
In the DNA ladder cytosine always pairs with thymine.?
False. In a DNA molecule, guanine pairs with adenine.
