Unit 3C Quiz- DNA, RNA & Replication

Every single one of your cells (except red blood cells) has a copy of your DNA. Which organelle identified in the picture holds your DNA?

• A
• B
• C
• D
• E

What two scientists are credited with the discovery of the structure of DNA?

• Watson and Crick
• Crick and Franklin
• Watson and Wilkins
• Watson and Franklin

What research did Rosalind Franklin contribute to the discovery of the structure of DNA?

• the hypothesis that DNA carries genetic information
• a model representing the shape of the DNA molecule
• a ratio of A to T and C to G bases in the DNA molecule
• x-ray diffraction pictures of the shape of the DNA molecule

Why is DNA considered the “Code of Life”?

• DNA gives the instructions for how living cells look and work.
• DNA is the common code in all living things.
• DNA codes for specific proteins.
• All of the above

What is the relationship between DNA, genes and chromosomes?

• Chromosomes make up genes and genes make up DNA.
• Chromosomes make up DNA and DNA makes up genes.
• DNA makes up genes, and genes linked together make up a chromosome.
• There is no relationship between DNA, genes and chromosomes.

What phrase best describes the structure of a DNA molecule?

• a ball of yarn
• a twisted ladder
• a straight staircase
• a rod-shaped structure

What are the sides of the DNA molecule made of?

• deoxyribose sugars and phosphate groups
• nitrogen bases and deoxyribose sugars
• thymine and adenine
• adenine and guanine

What is the process during which DNA is copied into 2 identical DNA molecules?

• DNA replication
• DNA elongation
• DNA translation
• DNA transcription

What enzyme unwinds DNA during DNA replication?

• RNA helicase
• DNA helicase
• RNA polymerase
• DNA polymerase

What enzyme adds complementary DNA bases during DNA replication?

• RNA helicase
• DNA helicase
• RNA polymerase
• DNA polymerase