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- 1. Multiple Choice
Which of the following best describes a DNA molecule?double helixcontains ribosemade of amino acidscontains Uracil - 2. Multiple ChoiceWhy is DNA important?it is very small and very complicatedit's in everythingit serves as the blueprint for traits of all living thingsbecause we eat it every day for energy
- 3. Multiple ChoiceWhich 2 molecules form the sides (backbone) of the DNA ladder?deoxyribose sugar and adeninedeoxyribose sugar and a hydrogen bonddeoxyribose sugar and the nucleusdeoxyribose sugar and phosphate
- 4. Multiple ChoiceNitrogenous bases are joined by which type of bond?polar bondsionic bondscovalent bondshydrogen bonds
- 5. Multiple ChoiceWhich 2 molecules forms the sides (backbone) of the DNA ladder?deoxyribose and adeninedeoxyribose and a hydrogen bondsugar and the nucleusdeoxyribose (sugar) and phosphate
- 6. Multiple ChoiceWhat are the three components of a nucleotide?sugar, hydrogen, nitrogen basesugar, oxygen, nitrogen basesugar, phosphate, nitrogen basesugar, phosphate, protein
- 7. Multiple ChoiceCytosine always pairs withAdenineThymineUracilGuanine
- 8. Multiple ChoiceName this structuredouble helixnucelotidetwisted ladderhydrogen bond
- 9. Multiple ChoiceWhich organelle is DNA usually found in?cell membranevacuoleribosomenucleus
- 10. Multiple ChoiceNucleotides are made up of a sugar, phosphate, and..?nitrogenous basenucleic acidcholesterolfatty acid
- 11. Multiple ChoiceGuanine bonds with ______________.AdenineGuanineCytosineThymine
- 12. Multiple ChoiceThe two strands of DNA are held together by:Hydrogen BondsPhosphodiester BondsGlycolsyl BondsGlycosidic Linkages
- 13. Multiple Choice
What is the complement to the DNA strand below:
ATGCCAT
TACGGTT
TACGGTA
ATGGCAA
ATGGCAT
- 14. Multiple Choice
Which of the following is a base pair?
Adenine - Cytosine
Cytosine - Thymine
Deoxyribose - Cytosine
Cytosine - Guanine
- 15. Multiple Choice
Which of the following is not a component of DNA?
Deoxyribose Sugar
Phosphate Group
Carbon Base
Nitrogen Base
- 16. Multiple ChoiceWhich of the following is not a nitrogen base found in DNA?ThymineUracilGuanineAdenine
- 17. Multiple ChoiceWhat 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.
- 18. Multiple ChoiceAssume 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.
- 19. Multiple Choice
How is the instructions for your traits carried on a DNA molecule?
Sequence of the nitrogen bases
In the Deoxyribose Sugar
In the bond between the phosphate and the sugar
In the phosphate group
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