DNA Structure and Function

DNA is short for _____

• Diphosphorus Nucleic Acid

• Ribose Nucleic Acid

• Deoxyribonucleic Acid

• Do Not Attempt

Tags

NGSS.HS-LS1-1

A nucleotide is composed of

• A phosphate, sugar and nitrogenous base

• A protein, sulfur and Guanine

• A phosphate, something and a base

• A protein, sugar and nitrogenous base

Which of the following is a base pair?

• Adenine - Cytosine

• Cytosine - Thymine

• Deoxyribose - Cytosine

• Cytosine - Guanine

The weak bonds between base pairs is a ___

• Covalent Bond

• Polar Bond

• Non Polar Bond

• Hydrogen

Tags

NGSS.HS-PS1-2

Which of the following best describes a DNA molecule?

• double helix
• strand of protein

• single strand

• neuron

Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

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 are the 4 nitrogen bases?

• sugar, phosphate and a base

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

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

• deoxyribose and a base

• phosphate and a base

• base pairs

• deoxyribose (sugar) and phosphate