DNA - History and Structure

DNA stands for

• Deoxyribonucleic Acid
• Dynamic Nucleic Acid
• Double Nucleotide Assembly
• Digital Nucleic Acid

The two types of nucleic acids are

• Protein and Lipid
• Carbohydrate and Fiber
• Glucose and Fructose
• DNA and RNA

Each nucleotide is made up of a(n) _______ group, a ________, and a nitrogenous base.

• phosphate, sugar

• sulfate, starch

• carbohydrate, protein

• amino acid, lipid

A section of DNA that serves as the blueprint/instructions for making proteins is called a

• chromosome
• enzyme
• gene
• carbohydrate

The shape of DNA is a

• double helix

• single strand

• circle

• cube

The shape of RNA is a

• double helix

• single strand

• circle

• cube

Nitrogen bases in DNA bond in the middle with weak...

• carbon bonds
• hydrogen bonds
• oxygen bonds
• covalent bonds

The complementary base pair to T (thymine) is ​ (a)   . The complementary base pair to G (guanine) is ​ (b)   .

• A (adenine)
• G (guanine)
• T (thymine)
• C (cytosine)
• U (uracil)

The main purpose of RNA is

• Energy storage in cells
• Cellular respiration
• DNA replication
• Making proteins

In RNA, T (thymine) is replaced with

• C (cytosine)

• U (uracil)

• G (guanine)

• R (ribose)