Question

In a strand of dna if the percentage of thymine is 30 what would be the percentage of cytosine

Answer 1

So , 20%cytosine means 20%guanine . And that would sum up to 40% so remaining 60% is half adenine and half thymine. So amount is thymine is 30%.

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Answer 2

20%

Explanation:

• According to the chargaff's rule, the amount or percentage of guanine in the double-stranded molecule of DNA is equal to the amount of cytosine and the number or percentage of adenine is equal to thymine in double-stranded DNA.
• Therefore if there is 30% thymine in DNA then 30% adenine would be present in the DNA which makes a total of 60%. The rest 40% is made by cytosine and guanine. So cytosine will make 20% and guanine will make 20% of nucleotide in the DNA. Therefore the correct answer is 20%.

Learn more about chargaff's rule:

• https://brainly.in/question/11600734