DNA: The Blueprint of Life

What molecule is known to store our genetic instructions?

• Carbohydrate

• RNA

• DNA

• Protein

How many chromosomes does each somatic cell in a human body have?

• 23

• 46

• 92

• 44

What are the four nitrogenous bases found in DNA?

• Adenine, Guanine, Cytosine, Thymine

• Adenine, Thymine, Cytosine, Guanine

• Adenine, Thymine, Guanine, Uracil

• Adenine, Guanine, Cytosine, Uracil

What is the shape of DNA?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

Who was the Swiss biologist that discovered DNA?

• James Watson

• Francis Crick

• Rosalind Franklin

• Friedrich Miescher

What is the role of RNA primase in DNA replication?

• It unwinds the double helix

• It adds matching nucleotides to the new chain

• It lays down short RNA primers

• It joins Okazaki fragments

How often does DNA replication make a mistake?

• One in every 100 billion nucleotides

• One in every 10 million nucleotides

• One in every 100 million nucleotides

• One in every 10 billion nucleotides

What major difference does RNA have compared to DNA?

• RNA is double-stranded

• RNA contains thymine instead of uracil

• RNA has a deoxyribose sugar

• RNA is single-stranded