What is DNA

Multiple Choice

Why is the discovery that DNA stores and transmits genetic information significant for our understanding of heredity?

• Because it explains how traits are passed from one generation to the next

• Because it shows how proteins are made in the cell

• Because it describes how cells divide

• Because it explains the structure of the cell membrane

Multiple Choice

Which of the following is NOT one of the three main functions of DNA?

• Storing genetic information

• Copying genetic information

• Expressing genetic information

• Digesting nutrients

Multiple Select

Which of the following pairs of nitrogenous bases are correctly matched according to DNA base pairing rules?

• Adenine - Thymine

• Guanine - Cytosine

• Adenine - Cytosine

• Guanine - Thymine

Multiple Choice

DNA strands are held together by hydrogen bonds between which pairs of nitrogenous bases?

• Adenine and Thymine; Guanine and Cytosine

• Adenine and Guanine; Thymine and Cytosine

• Adenine and Cytosine; Guanine and Thymine

• Thymine and Guanine; Adenine and Cytosine

Multiple Choice

What is the main function of DNA as discovered by scientists after studying how bacteria could be altered and transferred?

• DNA stores and transmits genetic information

• DNA provides energy for the cell

• DNA acts as a structural component of the cell

• DNA digests nutrients in the cell

Multiple Choice

_____________________ carries information for inherited traits.

• DNA
• FBI
• RNA
• CBS

Multiple Choice

A nucleotide is made up of three parts:  which of these is not one of those parts?

• sugar
• phosphate
• amino acids
• base

Multiple Choice

A strand of DNA that looks like a twisted ladder is called a _____________________

• triple twist
• corkscrew
• double helix
• chain reaction

Multiple Choice

Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

Multiple Choice

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

Multiple Choice

What are the 4 nitrogen bases?

• adenine, thymine, cytoplasm, and guanine
• adenine, thymine cytosine, and guanine
• adenine, thymine, cytosine, and gylcerol
• adenine, thymine, cytosine, and glucose

Multiple Choice

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for traits of all living things
• because we eat it every day for energy