DNA Structure and Replication WS Quiz

What does DNA provide instructions for?

• Building and operating all living things

• Creating energy for cells

• Forming cellular membranes

• Regulating temperature in the body

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

What are the four types of chemical bases in DNA?

• Adenine, guanine, cytosine, thymine

• Glucose, fructose, lactose, sucrose

• Carbon, hydrogen, oxygen, nitrogen

• Protein, lipid, carbohydrate, nucleic acid

How are the base pairs in DNA connected to each other?

• By covalent bonds

• By ionic bonds

• By hydrogen bonds

• By peptide bonds

What is the shape of the DNA molecule commonly compared to?

• A straight ladder

• A twisted ladder

• A helical spring

• A circular loop

What is the process called in which DNA makes an exact copy of itself?

• DNA transcription

• DNA translation

• DNA replication

• DNA mutation

During DNA replication, how many DNA double helices are formed?

• One

• Two

• Three

• Four

Why is DNA replication important?

• It helps in the repair of damaged DNA

• It ensures that new cells have the same genetic information

• It allows for the synthesis of proteins

• It provides energy for cell activities

A diagram illustrating the structure of DNA, including the sugar-phosphate backbone, base pairs, and hydrogen bonds.