thymines, guanines, adenines, and cytosines
Since DNA base pairs always have an equal amount of adenine and thymine, if there are 45 cytosines, there would also be 45 guanines. Therefore, the number of adenines would be equal to the number of thymines, making it 100 - 45 - 45 = 10 adenines.
what are 4 bases that make up the rungs of the DNA ladder
purines
4
I just did this paper in Biology, the answer is Hydrogen bonds! :)
Adenines base pair in RNA is uracil.
Hydrogen Bonds Adenine, Thymines, Guaines, and Cytosines.
This question does not admit of a definite answer because we don't know what the DNA is coding for. Each codon encodes for one particular amino acid. The pattern of base pairs in the codon determines which amino acid. The no of adenines in one codon can be anywhere from zero to three. Zero and three are both numbers of fairly low probability, but one and two are about equally likely. The statistical answer for a totally unknown protein being coded for is between 40 and 60.
The four bases of the DNA ladder are adenine (A), thymine (T), cytosine (C), and guanine (G). These bases pair up in a complementary way (A with T and C with G) to form the rungs of the DNA double helix.
The rungs of the ladder are pairs of 4 types of nitrogen bases (thymines, adenines, guanines, cytosines).---The pairs are guanine and cytosine (G-C), or adenine and thymine (A-T).The rungs of the dna ladder are made of alternating sugars and phosophate groups.
Adenine bonds with Thymine.Adenine complementary stand is Thymine in DNA but in RNA Thymine is replaced with Uracil. This means that Adenines complementary stand is Uracil in RNA.