Structure DNA

What does DNA stand for?

• Deoxyribonucleic acid

• Denitrogenous acid

• Deribonucleic acid

• Diribonucleic acid

What are the three components of a nucleotide?

• sugar, hydrogen, nitrogen base

• sugar, oxygen, nitrogen base

• sugar, phosphate, nitrogen base

• sugar, phosphate, protein

Name this structure

• double helix

• nucelotide

• twisted ladder

• hydrogen bond

Tags

NGSS.HS-LS1-1

The weak bonds between base pairs is a ___

• Covalent Bond

• Polar Bond

• Non Polar Bond

• Hydrogen

According to Chargaff's rule, there are equal numbers of certain nitrogenous bases in DNA due to base pairing. So if we were to inspect a molecule of DNA and 20% of it was composed of Cytosine, what percentage would be composed of Adenine?

• 20%

• 30%

• 40%

• 25%

Which of the following is not a nitrogen base found in DNA?

• Thymine

• Uracil 

• Guanine

• Adenine

The structure of DNA is a twisted ladder shape called a _________________.

• helix

• single helix

• double helix

• triple helix

The two sides of the DNA ladder are made up of ____________________________________________.

• sugars and phosphates

• traits and characteristics

• DNA and RNA

______________ always pairs with thymine.

• Cytosine

• Guanine

• Adenine

Cytosine always pairs with __________________.

• cytosine

• thymine

• guanine

• adenine