Question

Paragraph 1 discusses several important facts regarding the DNA molecule. Which of the following facts relates to Chargaff’s rule?

Answer 1

Options:

A. DNA contains a pentose sugar, nitrogenous bases, and a phosphate group

B. DNA is a molecule in structure

C. DNA contains thymine, cytosine, adenine, and guanine

D. Cytosine and guanine appear in equal proportions in DNA

Cytosine and guanine appear in equal proportions in DNA facts relates to Chargaff’s rule. Thus, the correct option is D.

What are Chargaff rules?

The relationship between the nucleotides that make up DNA is described by Chargaff's rules: The amounts of Adenine (A) and Thymine (T) are equal, and the amounts of Guanine (G) and Cytosine (C) are equal (C).

The total number of purine bases equals the total number of pyrimidine bases in synthesis.

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Answer 2

The facts are not found here, but Chargaff stated that there is an equal amount between Adenine and Thymine and as well as between Guanine and Cytosine.

What is the Chargaff’s rule?

Chargaff’s rule is a law that indicates how nucleotide bases are proportionally arranged in the double helix of DNA.

According to this rule, the amount of Adenine (A) is equal to Thymine, whereas the amount of Cytosine is equal to Guanine.

In conclusion, Chargaff stated that there is an equal amount between Adenine and Thymine and as well as between Guanine and Cytosine.

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