DNA and Chargaff's Rule Quiz

What is the structure of DNA?

• single strand

• double helix

• triple helix

• square shape

What are the four bases in DNA?

• adenine, thymine, cytosine, uracil

• adenine, thymine, guanine, cytosine

• adenine, uracil, cytosine, guanine

• adenine, thymine, cytosine, guanine

Which bases pair together in DNA?

• A-T and C-G

• A-G and C-T

• A-C and G-T

• A-T and G-C

What is Chargaff's rule?

• Chargaff's rule is that A=C and G=T in DNA.

• Chargaff's rule is that A=G and T=C in DNA.

• Chargaff's rule is that A=C and T=G in DNA.

• Chargaff's rule is that A=T and G=C in DNA.

What is the complementary DNA strand for the sequence 'ATCG'?

• GCTA

• CGAT

• TAGC

• TACG

What is the shape of DNA?

• triangle

• circle

• double helix

• square

Which base pairs with adenine in DNA?

• cytosine

• guanine

• uracil

• thymine

Which base pairs with cytosine in DNA?

• adenine

• guanine

• thymine

• uracil

What are the two types of nitrogenous bases in DNA?

• uracil and cytosine

• adenine and guanine

• purines and pyrimidines

• thymine and cytosine

What is the function of DNA in cells?

• provide energy for cellular processes

• synthesize proteins

• store and transmit genetic information

• regulate cell division

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