Topic 4- L3-Genetic Coding & Protein Synthesis Quiz

What is DNA?

• The waste product of cellular respiration

• The building blocks of proteins

• The genetic material that carries information about an organism

• The energy source for cells

What are genes?

• Sections of lipids found in the cytoplasm

• Sections of proteins found in the nucleus

• Sections of DNA found on chromosomes

• Sections of RNA found on chromosomes

Why do cells undergo DNA replication?

• To make copies of DNA for cell division

• To create new chromosomes

• To produce more ribosomes

• To repair damaged DNA

How are proteins made?

• By combining lipids and carbohydrates

• By converting sugars into amino acids

• By linking amino acids together

• By breaking down DNA molecules

What is the role of messenger RNA (mRNA) in protein synthesis?

• Breaks down proteins into amino acids

• Transfers amino acids to the nucleus

• Carries copies of instructions for protein assembly from DNA to ribosomes

• Carries amino acids to the ribosome

Which nitrogen base pairs with adenine in DNA?

• Uracil

• Cytosine

• Guanine

• Thymine

What is the shape of DNA?

• Single helix

• Spiral helix

• Triple helix

• Double helix

What is the function of transfer RNA (tRNA) in protein synthesis?

• Carries amino acids to the ribosome

• Carries copies of DNA to the nucleus

• Breaks down proteins into amino acids

• Transfers lipids to the cytoplasm

Why is DNA replication important?

• To create genetic mutations

• To stop cell division

• To ensure each cell contains the correct amount of DNA

• To prevent protein synthesis

What are proteins made from?

• Lipids

• Amino acids

• Nucleic acids

• Carbohydrates