DNA structure Quiz

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Tags

NGSS.HS-LS1-1

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

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

• deoxyribose sugar and adenine
• deoxyribose sugar and a hydrogen bond
• deoxyribose 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

Tags

NGSS.HS-LS1-1

Cytosine always pairs with

• Adenine
• Thymine
• Uracil
• Guanine

Nucleotides are made up of a sugar, phosphate, and..?

• nitrogenous base
• nucleic acid
• cholesterol
• fatty acid

Adenine (A) bonds with ______________.

• Guanine (G)

• Thymine (T)

• Cytosine (C)

• Adenine (A)

What is the job of ribosomes?

• make proteins

• store energy

• create covalent bonds

• create hydrogen bonds

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

The twisted ladder shape of DNA is called a ______________?

• twisted noddle

• winding helix

• double helix

• triple helix

Which nitrogenous base correctly matches up with guanine?

• adenine

• thymine

• cytosine