Structure and Function of DNA

What does DNA stand for?

• Deoxyribonucleic acid

• Denitrogenous acid

• Deribonucleic acid

• Diribonucleic acid

What is the percentage of T?

• 22%

• 11%

• 28%

• 50%

The twisted ladder shape of DNA is known as a

• Double Helix

• Triple Helix

• Single Helix

• Triple Helix

Which of the following is not a component of DNA?

• 5 Carbon Sugar

• Phosphate Group

• Carbon Base

• Nitrogen Base

Which answer choice would by complementary (match up) with the DNA strand   
ATGCATTCGA

• ATGCATTCGA

• TACGTAAGCT

• TACCTAAGGA

• ATGCCATGAA

What are the nucleotides made of?

• Sugar, Phosphate, nitrogen base

• Phosphate, Adenine, nitrogen base

• Thymine, Adenine, Cytomine

• Phosphate, Nitrogen, Adenine

Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG

• ATG TGA CAG

• TAC ACT GTC

• GTA AGT GAC

• CAT TCA CTG

Identify the correct ratio of Adenine to Thymine and Cytosine to Guanine in DNA molecule.

• 1:2

• 2:1

• 1:1

• 3:1

In organism #1 there is 29% guanine in a molecule of DNA, Determine the percent (%) _____ thymine.

• 21%

• 29%

• 42%

• 58%

What is the complementary DNA strand for the following in the 3' to 5' direction?

5'-CAAGT-3'

• 3'-GTTCA-5'

• 3'-TGGAC-5'

• 3'-CAAGT-5'

• 3'-CAAGU-5'