What is the percentage of thymine if adenine is 30\%?

If 30 percent of DNA is adenine, then by Chargaff’s rule 30 percent will be thymine. The remaining 40 percent of the DNA is cytosine and guanine. Since the ratio of cytosine to guanine must be equal, then each accounts for 20 percent of the bases.

Is adenine makes 30\% of the DNA molecule?

Correct answer: This is because adenine will always pair with thymine, so there will be just as many thymine bases as adenine bases. Together, adenine and thymine compose 70\% of the segment. This means that 30\% of the section is composed of guanine-cytosine pairs.

What is the percentage of guanine in DNA if thymine is 30?

Thymine = 30\% Therefore Adenine also +30\% Guanine and Cytosine must therefore be 40\%/2 So Guanine = 20\% And Cytosine = 20\% D.

What are the percentages of thymine cytosine and guanine in a DNA molecule that is 30\% adenine?

Correct answer: Together, adenine and thymine compose 70\% of the segment. This means that 30\% of the section is composed of guanine-cytosine pairs. Since these two bases will be equal in quantity, 15\% of the DNA section will be cytosine bases.

What would be the percentage of cytosine in a double stranded DNA sample which contains 30\% adenine of the total bases?

If 30\% is adenine, then 60\% is A/T pair, leaving 40\% G/C pair => 20\% Cytosine.

What percentage of the molecule is cytosine?

18\%
In a DNA molecule cytosine is 18\%.

What is the percentage of adenine and cytosine in a DNA strand?

Therefore if there is 10\% adenine, there must be 10\% thymine. With 20\% of the strand accounted for, that leaves 80\% to be C-G base pairs. Those percentages also have to be equal, so the strand will have 40\% guanine and 40\% cytosine.

What is the ratio of cytosine to guanine to thymine?

If 30\% of Adenine is present, it would be reasonable to assume that 30\% of Thymine will be present, as the ratio between the two complementary nitrogenous bases will be roughly equal. Therefore, that leaves us with 40\% between Cytosine and Guanine. Since the ratio between them would be equal, it gives us 20\% of Cytosine and 20\% of Guanine.

What percentage of a DNA sample would be thymine?

A DNA sample contains 30\% cytosine. What percentage of the sample would be thymine? We know according to Chargaff’s rules, amount of adenine is equal to amount of thymine and amount of cytosine is equal to amount of guanine in DNA. So we are given that given DNA has 30\% cytosine.

How do you know how much cytosine is in a duplex?

You can’t know. Now, if two complementary strands were considered, then there’s 1 T for every A and 1 G for every C, so the duplex must be 20\% cytosine. However, if you consider just 1 molecule with 30\% A, then the amount of cytosine must be between 0 and 70\%.