Chargaff's Rule

Which of the following is a base pair?

• Adenine - Cytosine

• Cytosine - Thymine

• Deoxyribose - Cytosine

• Cytosine - Guanine

Identify which of these statements is correct, the percent (%) of guanine is equal to the percent of

• adenine

• thymine

• cytosine

• guanine

Identify the correct ratio of Adenine to Thymine and Cytosine to Guanine in DNA molecule.

• 1:2

• 2:1

• 1:1

• 3:1

In the DNA of a panda, there is 30% adenine. Determine the percent of guanine.

• 15%

• 40%

• 10%

• 20%

In organism #1 there is 13% thymine in a molecule of DNA, Determine the percent (%) _____ cytosine.

• 13%

• 26%

• 37%

• 74%

In organism #1 there is 29% guanine in a molecule of DNA, Determine the percent (%) _____ thymine.

• 21%

• 29%

• 42%

• 58%

If a DNA stand has 32 % guanine before semi conservative replication occurs, what percent thymine will each new strand have after replication? 

• 64%

• 32%

• 18%

• 36%

According to Chargaff's Rule, if a DNA sample contains 20% adenine, what percentage of thymine should it contain?

• 20%

• 30%

• 40%

• 60%

Chargaff's Rule states that in a DNA molecule, the amount of adenine is equal to the amount of which other base?

• Cytosine

• Guanine

• Thymine

• Uracil

In a DNA molecule, if the percentage of cytosine is 35%, what is the percentage of guanine according to Chargaff's Rule?

• 15%

• 35%

• 50%

• 65%