Which of the following best describes a DNA molecule?
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  • double helix
  • contains ribose
  • made of amino acids
  • contains Uracil
Adenine bonds with ______________.
  • Guanine
  • Thymine
  • Cytosine
  • Adenine
Guanine bonds with ______________.
  • Adenine
  • Guanine
  • Cytosine
  • Thymine
Why is DNA important?
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  • 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
Which 2 molecules forms the sides (backbone) of the DNA ladder?
  • deoxyribose and adenine
  • deoxyribose and a hydrogen bond
  • sugar and the nucleus
  • deoxyribose (sugar) and phosphate
What bonds the nitrogen bases in the center of the DNA strand?
  • Covalent Bonds
  • Ionic Bonds
  • Hydrogen Bonds
  • Metallic Bonds
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
Which sequence of DNA bases would pair with this partial strandATG TGA CAG
  • ATG TGA CAG
  • TAC ACT GTC
  • GTA AGT GAC
  • CAT TCA CTG
In a sample of DNA, 20 percent is Adenine. What are the percentages of the other bases?
  • Thymine - 30 percent, Cytosine 25 percent, Guanine 25 percent
  • Cytosine - 20 percent, Thymine - 30 percent, Guanine 25 percent
  • Thymine - 20 percent, Cytosine 30 percent, Guanine 30 percent
  • Thymine - 30 percent, Cytosine 30 percent, Guanine 20 percent
DNA codes for...
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  • cholesterol
  • proteins
  • fatty acids
  • a sandwich
What determines the code, or information, of a DNA molecule?
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  • 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
What is the relationship between a protein, the cell, and DNA?
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  • DNA is produced by protein which is produced in the cell
  • Protein is composed of DNA which is produced in the cell
  • DNA controls the production of protein in the cell
  • A cell is composed of DNA and protein
Genes are found on...
  • chromosomes
  • alleles
  • proteins
  • anthers
A change in the genetic code = ____
  • trait
  • genotype
  • phenotype
  • mutation
Nucleotides are made up of a sugar, phosphate, and..?
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  • nitrogenous base
  • nucleic acid
  • cholesterol
  • fatty acid
What is the name of the subunit that builds a DNA polymer?
  • Nucleotide
  • Nucleic acid
  • Nitrogenous base
  • Nucelosome
What does DNA stand for?
  • Deoxyribonucleic acid
  • Denitrogenous acid
  • Deribonucleic acid
  • Diribonucleic acid
Why is the order of amino acids so important?
  • The order of amino acids dictates what shape the protein will fold into.
  • It is not important. The protein folding chamber will force the protein to fold into the correct shape.
This nucleic acid is single stranded
  • DNA
  • RNA
  • Both
DNA and RNA are macromolecules in the category of
  • Proteins
  • Lipids
  • Nucleic Acids
  • Carbohydrates
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