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- 1. Multiple ChoiceWhich sequence of DNA bases would pair with this partial strand
ATG TGA CAGATG TGA CAGTAC ACT GTCGTA AGT GACCAT TCA CTG - 2. Multiple Choice
Which of the following best describes a DNA molecule?double helixcontains ribosemade of amino acidscontains Uracil - 3. Multiple ChoiceWhich of the following units are repeatedly joined together to form a strand of DNA?amino acidsnucleotidesfatty acidspolysaccharides
- 4. Multiple ChoiceIn a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount ofcytosineguaninethymineuracil
- 5. Multiple ChoiceAdenine bonds with ______________.GuanineThymineCytosineAdenine
- 6. Multiple ChoiceGuanine bonds with ______________.AdenineGuanineCytosineThymine
- 7. Multiple ChoiceWhy is the sequence of nitrogen bases in 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
- 8. Multiple ChoiceWhat determines the code, or information, of a DNA molecule?the shape (structure) of the nitrogen basesthe order (sequence) of the nitrogen basesthe color of the nitrogen basesthe frequency (number) of nitrogen bases
- 9. Multiple ChoiceWhich 2 molecules form the sides (backbone) of the DNA ladder?deoxyribose and adeninedeoxyribose and a hydrogen bonddeoxyribose and the nucleusdeoxyribose and phosphate
- 10. Multiple ChoiceWhich organelle is DNA usually found in?cell membranevacuolechloroplastnucleus
- 11. Multiple ChoiceName this structuredouble helixnucelotidetwisted ladderhydrogen bond
- 12. Multiple ChoiceNitrogenous bases are joined by which type of bond?polar bondsionic bondscovalent bondshydrogen bonds
- 13. Multiple ChoiceNucleotides are made up of a sugar, phosphate, and..?nitrogenous basenucleic acidcholesterolfatty acid
- 14. Multiple ChoiceWhich shows the correct complementary base pairing for DNA?C-A, T-GA-G, C-TC-G, U-AT-A, G-C
- 15. Multiple ChoiceWhat are the 4 nitrogen bases?adenine, thymine, cytoplasm, and guanineadenine, thymine cytosine, and guanineadenine, thymine, cytosine, and gylceroladenine, thymine, cytosine, and glucose
- 16. Multiple ChoiceHow many hydrogen bonds form between cytosine and thymine?0234
- 17. Multiple ChoiceWhat does DNA stand for?Deoxyribonucleic acidDenitrogenous acidDeribonucleic acidDiribonucleic acid
- 18. Multiple ChoiceWhat is the name of the subunit that builds a DNA polymer?NucleotideNucleic acidNitrogenous baseNucelosome
- 19. Multiple ChoiceAn enzyme that unwinds the double helix of DNA and separates the DNA strands in preparation for DNA replicationDNA polymeraseRNA polymerasenucleotidehelicase
- 20. Multiple ChoiceA five-carbon sugar found in DNA.riboseguaninedeoxyribosehelicase
- 21. Multiple ChoiceDNA is copied duringTranslationTranscriptionReproductionReplication
- 22. Multiple ChoiceReplication is referred to as...conservativesemi-conservativequasi-conservativemostly liberal
- 23. Multiple ChoiceThe enzyme that adds nucleotides to the 3' end of a DNA molecule isDNA PolymeraseRNA PolymeraseDNA ligaseRNA Ligase
- 24. Multiple ChoiceWhich of the following is a base that is NOT contained in DNA?AdenineThymineUracilGuanine
- 25. Multiple ChoiceDuring replication, the DNA must first unwind and then unzip.TrueFalse
- 26. Multiple ChoiceBefore DNA winds back up, DNA polymerase will proofread the DNA to check for mistakes.TrueFalse
- 27. Multiple ChoiceWhen an enzyme cuts open a DNA molecule, what type of bonds are being broken?Covalent BondsHydrogen BondsIonic BondsPeptide Bonds
- 28. Multiple ChoiceReplicate the following strand of DNA:
AATCATGGAAATCATGGATTAGTACCTUUAGUACCUGGATAUCUA - 29. Multiple ChoiceWhat type of bonds are located on outer part of the DNA molecule?HydrogenCovalent
- 30. Multiple ChoiceWhat can happen when the nitrogen bases do not match up correctly?undergo no changeundergo replicationundergo rare genetic mutations
- 31. Multiple ChoiceIf a short segment of DNA has 4 molecules of guanine, how many cytosine would it have?0248
- 32. Multiple ChoiceIf a piece of DNA has 35% adenine, how much cytosine must be in the sample?15%30%35%75%
- 33. Multiple ChoiceAn analysis of DNA shows that it contains 20% thymine, how much adenine must the DNA molecule contain?20%30%40%60%
- 34. Multiple ChoiceAn analysis of DNA shows that it contains 20% thymine, how much guanine must the DNA molecule contain?20%30%40%60%
- 35. Multiple ChoiceWhat does the blue pentagon represent in this structure?phosphate group5 carbon sugarnitrogenous basethymine group
- 36. Multiple ChoiceWhat does the black circle represent in this nucleotide?phosphate group5 carbon sugarguanine groupnitrogen contain base
- 37. Multiple ChoiceWhich of the following correctly identifies the PYRIMIDINES?Cytosine and ThymineGuanine and CytosineThymine and AdenineAdenine and Guanine
- 38. Multiple ChoiceWhich of the following nitrogenous bases has a double ring structure?All the purinesAdenine onlyGuanine onlyCytosine and Thymine
- 39. Multiple ChoiceWhich of the following nitrogenous bases form TWO hydrogen bonds when they base pair?Adenine and ThymineGuanine and CytosineGuanine and AdenineCytosine and Uracil
- 40. Multiple ChoiceWhat type of bond forms between nucleotides that make up the backbone of the DNA molecule?CovalentHydrogenIonicMetallic
- 41. Multiple ChoiceA segment of DNA as 120 adenine and 120 cytosine bases. The total number of nucleotides present in the segment is60120240480
- 42. Multiple ChoiceIn DNA, guanine is 10%. the content of adenine is80%40%20%10%
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