If a given strand of dna has 33% adenine, what is the percentage of all the other bases

If in a DNA strand the percentage of adenine is 33%, the percentage of the other bases in the molecule will be 33% for thymine, 17% for cytosine and 17% for guanine.

Explanation:

The DNA molecule possesses the information of the genome of a living being, according to a specific sequence of its nitrogenous bases adenine, guanine, cytosine and thymine.

Calculating the percentage or approximate proportion of nitrogenous bases in a DNA molecule can be established, approximately, according to the base pair rule of Chargaff.

Chargaff established in his observations that the DNA in a cell has a 1:1 purine : pyrimidine ratio, so there must be an equivalent amount of thymine for adenine and a similar amount of guanine for cytosine, since they are complementary bases.

According to the law of the base pair, if in a DNA strand there is 33% adenine, in the molecule there will be:

This rule applies to both strands, since the percentage of bases in a single strand will depend on the specific sequence of bases it has.

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