Adenine pairs with Thymine
Guanine pairs with Cytosine
Adenine pairs with Thymine Guanine pairs with Cytosine
The rungs or steps of DNA are made up of nucleotide bases. There are four types of nucleotide bases: adenine (A), thymine (T), cytosine (C), and guanine (G). These bases pair up in a specific way (A with T and C with G) to form the rungs of the DNA ladder.
nucleotide base pairs
nucleotide base pairs
Adenine pairs with Thymine Guanine pairs with Cytosine
Adenine pairs with Thymine Guanine pairs with Cytosine
The rungs of the DNA ladder are composed of alternating deoxyribose sugar molecules and phosphate groups.
When bonded together chemically, deoxyribose phosphate and an adenine molecule make up a nucleotide, which is a building block of DNA. This nucleotide contributes to the structure of the DNA molecule by providing the adenine base that pairs with thymine to form the rungs of the DNA ladder.
Two of the four nitrogenous bases make up the rungs on the DNA ladder. They are held together by two hydrogen bonds that occur between the adenosine and the thymine base pairs. Between the cytosine and the guanine there are three.
The monomers of DNA are called nucleotides, each nucleotide has three parts:PHOSPHATESUGAR ( Deoxyribose)NITROGEN BASE
what are 4 bases that make up the rungs of the DNA ladder
In DNA, the actual nitrogenous base rings make up the "ladder" while the "sides" are made from alternating deoxyribose and phosphate groups.