DNA structure recap (1)

What is the monomer of a DNA molecule?

• ribonucleotide

• deoxyribonucleotide

• deoxyribose

• ribose

What three components combine to form a DNA nucleotide?

• ribose sugar, nitrogenous base, phosphoric acid

• ribose sugar, nitrogenous base, phosphorous group

• deoxyribose sugar, carboniferous base, phosphoric acid

• deoxyribose sugar, nitrogenous base, phosphoric acid

What is formed when a phosphoric acid and a deoxyribose sugar combine?

• nucleoside

• nucleotide

• riptide

Nucleotides form through what kind of reaction?

• polymerisation

• dessication

• condensation

What name is given to the type of bond that connects the 5'C of the sugar and phosphate group in a nucleotide?

• phosphoester

• phosphodiester

• N-glycosidic

• hydrogen

What name is given to the type of bond that connects the 1'C of the sugar and nitrogenous base in a nucleotide?

• phosphoester

• phosphodiester

• N-glycosidic

• hydrogen

What name is given to the type of bond that connects two nucleotides, forming the sugar-phosphate backbone in a DNA strand?

• phosphoester

• phosphodiester

• N-glycosidic

• hydrogen

The two strands of a DNA molecule run in opposite directions. What is the correct term used to describe this?

• parallel

• helix

• antiparallel

What shape is the secondary structure of DNA?

• linear

• double helix

• square

What bonds form between complementary bases and help stabilise DNA?

• N-glycosidic

• phosphoester

• hydrogen

• phosphodiester