Exploring DNA Concepts in Biology EOC Review

What is the sugar found in DNA?

• Deoxyribose

• Ribose

• Fructose

• Glucose

What replaces thymine in RNA?

• Adenine

• Cytosine

• Guanine

• Uracil

Which enzyme is responsible for unzipping the DNA double helix?

• Ligase

• Helicase

• RNA polymerase

• DNA polymerase

During which phase does DNA replication occur?

• G1 phase

• S phase

• G2 phase

• M phase

What is the process of copying DNA into mRNA called?

• Transcription

• Replication

• Mutation

• Translation

Which type of RNA carries amino acids to the ribosome?

• mRNA

• snRNA

• rRNA

• tRNA

What is the start codon for protein synthesis?

• AUG

• UAA

• UGA

• UAG

Which of the following is NOT a type of RNA?

• rRNA

• dRNA

• tRNA

• mRNA

What technique is used to separate DNA fragments by size?

• PCR

• Gel electrophoresis

• Centrifugation

• Chromatography

What is the purpose of genetic engineering?

• To enhance the flavor of food

• To insert DNA from one organism into another

• To study the history of genetic diseases

• To create identical genetic copies of organisms