DNA Structure Review

What is the MONOMER that makes up DNA?

• proteins

• nucleotides

• glucose

• sugars

Which of the following is NOT a part of nucleotides?

• glucose

• deoxyribose

• phosphate group

• nitrogen base

Adenine pairs with

• guanine.

• cytosine.

• thymine.

• adenine.

Cytosine pairs with

• adenine.

• guanine.

• thymine.

• cytosine.

The complementary strand of A G C C G T is...

• T C G G C A.

• G A T T A C

• A G C C G T

• C T A A T G

The complementary strand of T A G G C C A A T G is...

• G C T T A A C C G T

• A T C C G G T T A C.

• C G A A T T G G C A

• T A G G C C A A T G

Write a sequence of 10 bases of your choice.

THEN, write the complementary strand for your first sequence.

The bonds that hold the phosphates and sugars of ONE STRAND together are

• hydrogen bonds.

• ionic bonds.

• covalent bonds.

• nitrogen bonds.

The bonds that hold the nitrogenous bases of two different strands together are

• ionic bonds.

• covalent bonds.

• hydrogen bonds.

• water bonds.

According to Chargaff's rule, if an organism's DNA is 17% adenine, what is the amount of thymine?

• 17%

• 66%

• 33%

• 83%