Compare and contrast the structure and components of DNA and RNA in prokaryotes.

Haploid nuclei ___________.

a. contain one set of chromosomes

b. contain two sets of chromosomes

c. contain half a set of chromosomes

d. are found in the cytosol of eukaryotic organisms

A nucleic acid containing the base uracil would also contain __________ sugar.

A nucleotide is made of ____________ .

a. a five-carbon sugar

b. phosphate

c. a nitrogenous base

d. all of the above

In DNA, adenine forms ___________ hydrogen bonds with ____________ .

a. three / uracil

b. two / uracil

c. two / thymine

d. three / thymine

Which of the following is most likely the number of base pairs in a bacterial chromosome?

a. 4,000,000

b. 4000

c. 400

d. 40

Which of the following descriptions best fits the class of molecules known as nucleotides?

a) A nitrogenous base & a phosphate group.

b) A nitrogenous base & a sugar.

c) A nitrogenous base, phosphate group & a sugar.

d) A nitrogenous base, a carbohydrate, & a sugar.

The four nitrogenous bases commonly found if DNA are: 

a) Adenine, thymine, cytosine, uracil 

b) Uracil, adenine, cytosine, guanine.

c) Uracil, cytosine, guanine, thymine.

d) Adenine, thymine, cytosine, guanine.

e) None are correct.

Which of the following statements about DNA structure is true?

a) The nucleic acid strands in a DNA molecule are oriented antiparallel to each other.

b) Nucleic acids are formed through phosphodiester bonds that link complementary nucleobases together.

c) Hydrogen bonds formed between the sugar-phosphate backbones of the two DNA chains stabilize the structure.

d) The pentose sugar in DNA is ribose (containing two hydroxyl groups).