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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!
What is the amount of matter contained in an object?
Its mass.By weight, the amount of matter an object contains is its mass.By size, the amount of matter an object contains is its volume.
Which biological molecule contains a large amount of the element nitrogen?
Proteins
Why making measurements is important to scientist?
this is important because the measurements help scienstst to observe the right amount of a substance they are adding to another this also give scientist the approximate measurements of volume
What is a solution that contains a large amount of solute?
The solution has a lower concentration. We can also say that it is dilute. Concentration is the amount of solute over the volume of solvent, thus when a large amount of solvent is used, concentration of the solution is low.
The amount of adenine will always equal what?
adenine In a DNA strand, the amount of Adenine equals the amount of Thymine, and the amount of Guanine equals the amount of Cytosine. So Adenine is your answer.
What is correct about Chargaff's rule for each species A adenine equals guanine B adenine equals thymine C adenine equals cytosine D adenine guanine thymine and cytosine amounts are equal?
in each species the amount of adenine equals the amount of cytosine
According to chargaff's rules the percentages of what are equal to those of thymine?
According to Chargaff's rules, the percentage of adenine is equal to thymine in a double-stranded DNA molecule. These rules state that in DNA, the amount of adenine is equal to the amount of thymine, and the amount of guanine is equal to the amount of cytosine.
A sample of DNA contains 500 adenine bases how many thymine bases does it contain?
If a sample of DNA contains 500 adenine bases, it will also contain 500 thymine bases. In DNA, adenine always pairs with thymine through hydrogen bonds, so the number of adenine bases will be equal to the number of thymine bases.
What do Chargaff's rules state about adenine and thymine?
Chargaff's rules state that in DNA, the amount of adenine (A) is equal to the amount of thymine (T). This is known as complementary base pairing, where A always pairs with T in the double helix structure of DNA.
Do cells contain the same amount of T as A?
In terms of DNA base pairing, adenine and thymine are complimentary bases. Therefore, for every base of adenine, there will be a base of thymine to compliment it. Therefore, cells contain the same amount of the bases adenine (A) and thymine (T).
Who discovered that the amount of adenine in DNA always equals the amount of thymine?
Those are Chargraff's Rules. You're wrong to think that adenine and thymine are the only pairs however because in RNA, adenine always pairs with uracil. Thymine is not in RNA. Adenine and Guanine are purines. Cytosine, thymine, and uracil are purimidines. Sources: My Science class and textbook Hope this helped!
In DNA adenine pairs with?
Short answer: Adenine More information: In the model of DNA that was discovered by Rosalind Franklin, James Watson and Francis Crick in 1953 proposed that DNA was a double helix structure with 4 bases which pair to each other. Due to experiments that had been carried out by other scientists at the time (namely Erwin Chargoff in 1949) he showed that despite the amount of DNA present the amount of adenine was always equal to the amount of thymine and the amount of cytosine to the amount of guanine. When Watson had this information he suddenly realised that the adenine-thymine bond was the same length as the cytosine-guanine bond and therefore they would pair to each other in a double helix model. Thymine and adenine are held together by a double hydrogen bond; whereas cytosine and guanine form a triple hydrogen bond.
If you performed a laboratory analysis of DNA you would find that the amount of adenine is the amount of thymine.?
Yes, in a sample of DNA, the amount of adenine is equal to the amount of thymine due to the complementary base pairing rule where adenine pairs with thymine. This relationship is known as Chargaff's rules.
Chargaff's rule states that the DNA of any species contains equal amounts of?
Chargaff's rule states that the amount of adenine in DNA is equal to the amount of thymine, and the amount of cytosine is equal to the amount of guanine. This principle underlies the complementary base pairing in DNA strands.
If a species has 23 percent adenine in its DnA what is the percentage of guanine it would contain?
If a species has 23% adenine, we know that adenine pairs with thymine. In DNA, the amount of adenine is equal to the amount of thymine, so together they make up 46% (23% adenine + 23% thymine). This leaves 54% for guanine and cytosine, of which guanine would be 27%.
In each species does the amount of adenine equal to the amount of thymine?
Every adenine in DNA will be paired to a thymine. However in RNA adenine is paired to uracil. So no - all else being equal since there is DNA and RNA in a body there will not be equal amounts.
