What is DNA?

DNA is found in the ___________ of cells.

Tags

NGSS.MS-LS3-1

Nucleotides are made up of three parts:

• Sugar

• Nitrogen Base

• Phosphate

• Ribosome Base

DNA is a ______________, which means it is made of nucleotides.

• adenine base

• guano particle

• nucleic acid

• uracil sugar

How many carbon atoms are in a deoxyribose sugar?

• 1

• 2

• 3

• 4

• 5

Adenine can pair with:

• adenine

• thymine

• cytosine

• guanine

Cytosine can pair with:

• adenine

• thymine

• cytosine

• guanine

Adenine and guanine are ____________ , which are double ring structures.

• purines

• puraciles

• pyrimidines

• percolates

Cytosine and thymine are ____________ , which are single ring structures.

• purines

• puraciles

• pyrimidines

• percolates

Choose all of the correct pairings below:

• cytosine and guanine

• adenine and guanine

• purines and pyrimidines

• thymine and cytosine

• thymine and adenine

Chargaff's rules states that DNA from any cell should have a 1:1 ratio of pyrimidine and purine bases (as per the base pairing rules).

In other words, the amount of guanine is ___________ to cytosine and the amount of adenine is equal to thymine.