Unit 2.1 DNA Structure and Replication

DNA is an acronym for _____

• Diphosphorus Nucleic Acid

• Ribose Nucleic Acid

• Deoxyribonucleic Acid

• Deoxyribonucleic Acetate

Primary functions of DNA are (mark all that apply)

• Transmit information on heredity from one generation to the next

• Control cellular respiration

• Regulate homeostasis

• Just take up some space

A nucleotide is composed of

• A phosphate, sugar and nitrogenous base

• A protein, protein and Guanine

• A phosphate, Adenine, and nitrogenous base

• A protein, Adenine and nitrogenous base

Which of the following is a base pair?

• Adenine - Cytosine

• Cytosine - Thymine

• Deoxyribose - Cytosine

• Cytosine - Guanine

The weak bonds between base pairs is a ___

• Covalent Bond

• Polar Bond

• Non Polar Bond

• Hydrogen

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Which of the following units are repeatedly joined together to form a strand of DNA?

• amino acids
• nucleotides
• fatty acids
• polysaccharides

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

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