Chargaff's Rule

Front

What is Chargaff's Rule?

Back

Chargaff's Rule states that in a DNA molecule, the amount of adenine (A) equals the amount of thymine (T), and the amount of guanine (G) equals the amount of cytosine (C).

Front

If a section of DNA has 13% thymine, what is the percentage of adenine?

Back

13%.

Front

If there is 29% guanine in a section of DNA, what is the percentage of thymine?

Back

21%.

Front

What is the relationship between the percentages of A + G in DNA?

Back

The percentage of A + G equals the percentage of T + C, which is 50%.

Front

Who proposed the concept that the amount of A equals the amount of T and the amount of G equals the amount of C?

Back

Chargaff.

Front

If a DNA strand has 32% guanine, what is the percentage of cytosine?

Back

32%.

Front

What is the complementary base pair for adenine in DNA?

Back

Thymine (T).

Front

What is the complementary base pair for guanine in DNA?

Back

Cytosine (C).

Front

How do you calculate the percentage of adenine if you know the percentage of thymine?

Back

The percentage of adenine is equal to the percentage of thymine.

Front

If a DNA sample has 40% cytosine, what is the percentage of guanine?

Back

40%.