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Chemical analysis has shown that the number of adenine molecules in a sample of DNA is always the same as the number of thymine molecules. A sample of RNA would show that there are equal numbers of adenine molecules and uracil molecules.

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9y ago
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8y ago

Because thymine is the corresponding base to adenine. Therefor for every A on one side of the DNA strand, there is a T in the exact spot on the other arm of the strand.

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Q: Why are there always the same number of adenine and thymine in a molecule?
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Are there always going to be an equal number of adenine and thymine nucleotides an a molecule?

yes.


Are there always going to be an equal number of adenine and thymine nucleotide in a molecule?

yes.


According to chargaffs rules which nucleotide is always paired with adenine in a DNA molecule?

Chargaff's rules stated that the number of adenine units in a DNA segment were equal to the number of thymine units.


Are there always going to be an equal number of adenine and thymine nucleotides in a molecule why?

Yes, because the Adenine and Thymine pair with each other.


Are there going a equal number of adenine and thymine nucleotides in a molecule?

Yes, please.


Are there always going to be equal number of adenine and thymine?

Yes.


If adenine makes up 30 percent of the bases in a DNA helix what percentage of the bases are cystosine?

There are four bases in the DNA double helix: adenine, guanine, cytosine and thymine. An adenine in one strand always pairs with a thymine in the other strand. Similarly, a cytosine always pairs with a guanine. So the number of adenines always equals the number of thymines, and the number of cytosines always equals the number of thymines. The total number of bases must equal 100%. So if 30% of the bases are adenine, another 30% must be thymine because they always pair with each other. Thymine and adenine added together therefore make 60% of the bases. The remaining 40% must be cytosine plus guanine. If the number of cytosines must equal the number of guanines, the percentage of cytosines must be ....... well, you can work it out for yourself!


The number of which base is equal to the number of guanine in a DNA molecule?

DNA contains four nucleic acid bases. These can be remembered by the acronym ACGT where the A stands for adenine, the C stands for cytosine, the G stands for guanine, and the T stands for thymine.


The number of hydrogen bonds between adenine and thymine in DNA is?

A double hydrogen bond binds adenine and thymine


In researching the structure of DNA Erwin Char gaff found the amount of adenine always equaled the amount of which other base?

Thymine. Discovered in the late 1940s, this is known as "The Chargaff's Rules": DNA has equal numbers of adenine and thymine residues (A = T) and an equal number of guanine and cytosine (G = C). This was one of the most important features for Watson and Crick to solve the structure of DNA molecule in 1953.


In researching the structure of DNA Erwin Char-gaff found the amount of adenine always equaled the amount of which other base?

Thymine. Discovered in the late 1940s, this is known as "The Chargaff's Rules": DNA has equal numbers of adenine and thymine residues (A = T) and an equal number of guanine and cytosine (G = C). This was one of the most important features for Watson and Crick to solve the structure of DNA molecule in 1953.


If there are 45 cytosines and 55 thymines how many guanines are there?

C and G always are the same number. So since there are 45 cytosine, there has to be 45 guanine.Since there are 55 thymine, there has to be 55 adenine since those numbers are also the same.