Chapter 13 Review - RNA and Protein Synthesis

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Which of the following units are repeatedly joined together to form a strand of DNA?

• amino acids
• nucleotides
• fatty acids
• polysaccharides

In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of

• cytosine
• guanine
• thymine
• uracil

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

Which 2 molecules form the sides (backbone) of the DNA ladder?

• deoxyribose sugar and adenine
• deoxyribose sugar and a hydrogen bond
• deoxyribose sugar and the nucleus
• deoxyribose sugar and phosphate

Which organelle is DNA usually found in?

• cell membrane
• vacuole
• chloroplast
• nucleus

Nitrogenous bases are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

What are the three components of a nucleotide?

• sugar, hydrogen, nitrogen base
• sugar, oxygen, nitrogen base
• sugar, phosphate, nitrogen base
• sugar, phosphate, protein

What are the base-pairing rules?

• A-G & C-T
• A-T & C-G
• C-T & A-G
• A-C & D-C

RNA contains the sugar

• ribose
• deoxyribose
• glucose
• lactose