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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 ChoiceA nucleotide includes...?pentose sugarnitrogenous basephosphate groupall of the above
- 3. Multiple ChoiceIn DNA, Adenine bonds with ______________.GuanineThymineCytosineAdenine
- 4. Multiple ChoiceGuanine bonds with ______________.AdenineGuanineCytosineThymine
- 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 does DNA stand for?Deoxyribonucleic acidDenitrogenous acidDeribonucleic acidDiribonucleic acid
- 7. Multiple ChoiceWhat is responsible for holding the two strands of the DNA double helix together?hydrogen bondsallelesLondon dispersion forcesdeoxyribose sugars
- 8. Multiple ChoiceName this structuredouble helixnucelotidetwisted ladderhydrogen bond
- 9. Multiple ChoiceWhich sequence of DNA bases would pair with this partial strand
ATG TGA CAGATG TGA CAGTAC ACT GTCGTA AGT GACCAT TCA CTG - 10. Multiple ChoiceIn a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount ofcytosineguaninethymineuracil
- 11. 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
- 12. Multiple ChoiceWhat is the correct structure of DNA?A double strand of nucleotidesA single strand of nucleotidesA double strand of amino acidsA single strand of amino acids
- 13. Multiple Choice
Chargaff's rules state that....
The amount of A's always = the amount of C's and the amount of T's always = the amount of G's.
The amount of A's always = the amount of A's and the amount of C's always = the amount of C's.
The amount of A's always = the amount of G's and the amount of C's always = the amount of T's.
The amount of A's always = the amount of T's and the amount of C's always = the amount of G's.
- 14. Multiple Choice
What was Rosalind Franklin's contribution to the discovery of DNA?
She built the first 3D model of DNA
She took the first X-Ray image of DNA
She discovered the nitrogen containing bases
She discovered the covalent bond in DNA
- 15. Multiple Choice
What bases are considered Purines?
A & G
A & T
C & G
C & A
- 16. Multiple Choice
What bases are considered Pyrimidines?
A&G
A&T
C&T
C&G
- 17. Multiple Choice
What contribution did Watson & Crick make to DNA?
They took the first X-Ray image of DNA
They built the first 3D model of DNA
They discovered the pairing of the nitrogen containing bases.
They discovered the type of bond that is found in DNA
- 18. Multiple Choice
Look at the image of DNA, what do the circles represent?
Sugars
Phosphates
Bases
Covalent Bonds
- 19. Multiple Choice
Look at the image of DNA, what do the pentagons represent?
Sugar
Phosphate
Nitrogen Containing Base
Covalent bond
- 20. Multiple Choice
Look at the image of DNA, there are molecules with the letters A & G in them, what are these molecules?
Sugars
Phosphates
Nitrogen containing bases
Covalent Bonds
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