Bio Unit 4 Topic 1 - A

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

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

What is the function of nucleic acids?

• Stores energy
• Stores genetic information
• Movement
• Physical structure

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Which of the following best describes a DNA molecule?

• made of amino acids

• contains ribose

• double stranded

• contains Uracil

What are the nucleotides made of?

• Sugar, Phosphate, nitrogen base
• Phosphate, Adenine, nitrogen base
• Thymine, Adenine, Cytomine
• Phosphate, Nitrogen, Adenine

Which 2 molecules forms the sides (backbone) of the DNA ladder?

• deoxyribose and adenine
• deoxyribose and a hydrogen bond
• sugar and the nucleus
• deoxyribose (sugar) and phosphate

Nitrogenous bases are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

DNA and RNA are examples of...

• proteins
• nucleic acids
• carbohydrates
• lipids

Which nitrogenous base is present in DNA, but absent in RNA?

• Thymine

• Purine

• Pyrimidine

• Uracil