9.2 The Structure of DNA

9.2 The Structure of DNA

Multiple Choice

What were James Watson and Francis Crick most known for

• Discovering a cure for cancer

• Discovering the structure of the DNA molecule

• Discovering how atoms bond into molecules

• Discovering the constant speed of light

Multiple Choice

What are the 4 nitrogen bases?

• adenine, thymine, cytoplasm, and guanine

• adenine, thymine cytosine, and guanine

• adenine, thymine, cytosine, and gylcerol

• adenine, thymine, cytosine, and glucose

Multiple Choice

The three parts of a nucleotide are:

• Sugar, protein, letter from DNA alphabet

• Sugar, phosphate, letter from DNA alphabet

• Phosphate, protein, letter from DNA alphabet

• Phosphate, sulphur, letter from DNA alphabet

Labelling

Label the nucleotide

Drag labels to their correct position on the image

Nitrogenous base

Phosphate

Sugar

Multiple Choice

Identify the correct Pyrimidine nitrogen bases.

• Adenine and Guanine
• Thymine and Guanine
• Thymine and Cytosine
• Adenine and Cytosine 

Multiple Choice

Identify the correct Purine nitrogen bases.

• Thymine and Cytosine
• Adenine and Guanine
• Adenine and Thymine
• Guanine and Cytosine 

Multiple Choice

What is the name for the shape of DNA?

• Twisted ladder

• Double helix

• Histone

• Circular chromosome

Multiple Choice

Adenine bonds with ______________.

• Guanine

• Thymine

• Cytosine

• Adenine

Multiple Choice

Guanine bonds with ______________.

• Adenine

• Guanine

• Cytosine

• Thymine

Multiple Choice

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

Multiple Choice

What determines the code, or information, of a DNA molecule?

• the shape (structure) of the nitrogen bases

• the order (sequence) of the nitrogen bases

• the color of the nitrogen bases

• the frequency (number) of nitrogen bases

Multiple Choice

The sugar in DNA is ?

• sucrose

• glucose

• deoxyribose

• fructose

Multiple Choice

What does DNA stand for?

• Deoxyribonucleic acid

• Denitrogenous acid

• Deribonucleic acid

• Diribonucleic acid

Multiple Choice

Which shows the correct complementary base pairing for DNA?

• C-A, T-G

• A-G, C-T

• C-G, U-A

• T-A, G-C

Multiple Choice

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

Hotspot

Which arrow is pointing to the phosphate?

Hotspot

Which arrow is pointing to the hydrogen bonds that are connecting nitrogen bases?