DNA Structure and Function

According to Chargaff's rule, Cytosine always pair with

• Adenine
• Uracil
• Thymine
• Gaunine

What is the significance of the sequence (order) of the Nitrogen Bases in DNA?

• The order of the Nitrogen Bases determines the number of chromosomes present in an organism.
• The order of the Nitrogen Bases determines the traits that an organism will possess (have).
• The order of the Nitrogen Bases determines the gender of an organism.
• The order of the Nitrogen Bases determines whether an organism is abiotic biotic.

The twisted ladder shape of DNA is known as a

• Double Helix
• Triple Helix
• Single Helix
• Triple Helix

Assume that you have straight hair and your sibling has curly hair. What accounts for this difference?

• You have DNA and your sibling does not.
• The your sequence of nitrogen bases is different than your sibling.
• Your sibling has a weave. 
• Your sibling has a genetic mutation. 

What is meant by the phrase "DNA is universal"?

• All organisms possess DNA made up of the same 3 components.
• All organisms share the exact same DNA
• DNA can be found throughout the universe
• DNA is found in Prokaryotes, Eukaryotes, and Viruses

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

• ATGCATTCGA
• TACGTAAGCT
• TACCTAAGGA
• ATGCCATGAA

Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

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

Name this structure

• double helix
• nucelotide
• amino acid
• protein

Which 2 molecules forms the sides (backbone) of the DNA ladder?

• ribose (sugar) and nitrogen bases
• ribose (sugar) and phosphate
• deoxyribose (sugar) and nitrogen bases
• deoxyribose (sugar) and phosphate