DNA Structure & History

What does DNA stand for?

• Deoxynitrogenous Acid

• Deribo Nuclein Acid

• Deoxyribonucleic Acid

• Denatured Nucleic Acid

What is the shape of a DNA molecule?

• double helix

• a single helix (one strand)

• square

• 5 sided ring

There are four nitrogenous bases found in DNA. Three are cytosine, thymine, and guanine. What is the fourth? 

• cytosinez

• purine

• uracil

• adenine

What makes up the SIDES of a DNA ladder?

• nitrogen bases

• Deoxyribose sugars & phosphates

• genes & chromosomes

• RNA

Tags

NGSS.HS-LS1-1

What makes up the rungs (center) of a DNA ladder?

• sugars & phosphates

• nitrogen bases

• sugars

• genes & chromosomes

Tags

NGSS.HS-LS1-1

What is DNA made up of?

• nucleotides

• cytoplasm

• RNA

• cells

Tags

NGSS.HS-LS1-1

Cytosine always pairs with

• Adenine
• Thymine
• Uracil
• Guanine

According to the Base pair rule, if a DNA molecule contains 2 cytosine's how many guanines will it contain?

• 1500

• 2

• 0

• 1000

DNA is located in the _____ in eukaryotic cells.

• nucleus

• cytoplasm

• mitochondria

• ribosome

Nucleotides consist of all of the following except:

• a phosphate

• a sugar

• a base

• a nucleic acid