DNA Structure & Function

What is the nick name for DNA

• Crooked Staircase

• Twisted Ladder

• Double Helix

• Double Strand

Name the four organic bases

• Cistosine, Granine, Aldine, Thrynine

• Lipids, Nucleic Acids, Carbohydrates, Proteins

• Uracil, Cytosine, Thymine, Guanine

• Adenine, Thymine, Cytosine, Guanine

What is the function of DNA

• To provide structure and protection to cells

• To fight off pathogens

• To send response signals to the brain

• Store and transfer genetic information, and code for genetic traits

What evidence proves that DNA is common to all living things, and share a common ancestor

• Every living thing has the exact same DNA

• Every living thing has its own unique genetic code

• All living things share the same organic bases ATCG

• There is no evidence that proves all living things share a common ancestor

DNA is made up of nucleotides and a sugar phosphate backbone

• True

• False

Which of the following is true according to base paring rules

• Adenine always Pairs with Thymine

• Cytosine always pairs with Thymine

• Thymine always pairs with Guanine

• Guanine always Pairs with Adenine

Which of the following is true according to base pairing rules

• Cytosine always pairs with Adenine

• Cytosine always pairs with Thymine

• Cytosine always pairs with Guanine

• Adenine always pairs with Guanine

The backbone of DNA is made of

• Sugar and Phosphate

• Biomolecules

• Lipids and Amino Acids

• Organic Bases

The inner ladder of the double helix is made up of

• Organic Bases

• Nucleotides

• Fatty Acids

• Monosaccharides

Describe the structure of a nucleotide

• Nucleotides are made up of two organic bases and phosphate and a sugar

• Nucleotides are made up of a phosphate, sugar, and an organic base

• Nucleotides are made up of monomers and polymers

• Nucleotides are made up of only natural sugars and organic bases