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Chargaff's Rule

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

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

a)

adenine

b)

thymine

c)

cytosine

d)

guanine

2.

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

a)

Thymine

b)

Cytosine

c)

Adenine

d)

Guanine

3.

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

a)

1:2

b)

2:1

c)

1:1

d)

3:1

4.

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

a)

15%

b)

40%

c)

10%

d)

20%

5.

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

a)

13%

b)

26%

c)

37%

d)

74%

6.

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

a)

21%

b)

29%

c)

42%

d)

58%

7.
Chargaff's experiments showed that the amount of A, T, G and C is the same from species to species
a)
True
b)
False
8.
If a DNA stand has 32 % guanine before semi conservative replication occurs, what percent thymine will each new strand have after replication? 
a)
64%
b)
32%
c)
18%
d)
36%
9.

Based upon the data in the table provided complete letter D (32% Thymine), determine the percentage of Cytosine present in DNA of Yeast.

a)

20%

b)

36%

c)

64%

d)

18%

10.

Based upon the data in the table provided complete letter F (22.8% of Guanine), determine the percentage of Thymine present in DNA of Maize.

a)

37.9% Thymine

b)

32.8% Thymine

c)

27.2% Thymine

d)

22.6% Thymine