Biology Quiz

Label the Nucleotide

a

b

c

phosphate group

Ribose sugar

base

Which of the following statements about DNA is incorrect?

• DNA is made of 6 bases that pair up to make complementary base pairs.

• A molecule of DNA is known as a double helix.

• Adenine binds with thymine to make a complementary base pair.

• DNA is made up of nucleotides, each containing a phosphate group, a sugar group, and a base.

What is the structure of a DNA molecule known as?

• Triple helix

• Double helix

• Single helix

• Quadruple helix

Which base does adenine bind with to form a complementary base pair?

• Cytosine

• Thymine

• Guanine

• Uracil

What type of bonds hold DNA bases together?

• Nitrogen bonds

• Hydrogen bonds

• Oxygen bonds

• Carbon bonds

What is a codon?

• A single base pair

• A set of three base pairs

• A long chain of amino acids

• A type of protein

What is a polypeptide?

• A single amino acid

• A type of sugar

• A long chain of amino acids

• A set of three base pairs

What is the process of transcription?

• The process of DNA replication

• The process of converting RNA to protein

• The process of copying DNA into RNA

• The process of protein folding

What are chromosomes?

• Tightly wound strands of RNA

• Tightly wound strands of DNA

• Loosely wound strands of protein

• Loosely wound strands of DNA

What is a section of DNA called?

• Chromosome

• Protein

• Gene

• Codon