What is DNAVersion en ligne Test your knowledge on how DNA works with this fun quiz! par Amy Carlowski 1 What re the subunits that make up DNA? a Nucleotide b Amino acid c Chromosome d Protein 2 Which base pairs with Adenine in DNA? a Cytosine b Uracil c Thymine d Guanine 3 Which base pairs with Cytosine in DNA? a Adenine b Uracil c Thymine d Guanine 4 What is the twisted ladder shape of DNA called? a Single strand b Double helix c Triple helix d Ring structure 5 What is the function of DNA? a Store genetic information b Produce energy c Regulate metabolism d Transport nutrients 6 What is the material that determines inherited characteristics? a deoxyribonucleic acid b ribonucleic acid c complementary nucleotides d complex molecules 7 Chromosomes are made of a protein and DNA b sugar, phosphate and a base c Adenine, thymine, guanine and cytosine 8 Nucleotides are made of a protein and DNA b sugar, phosphate and a base c Adenine, thymine, guanine and cytosine 9 What are the bases of a nucleotide? a protein and DNA b sugar, phosphate and a base c Adenine, thymine, guanine and cytosine 10 What letters stand for the type of bases? a A, T, G, and C b A, T, G, and N c A, T, G and R d A, C, R, and D 11 What 2 things must DNA be able to do? (choose 2) Choose one or more answers a Give instructions to a cell b Be able to be copied each time a cell divides c Split into guanine and cytosine d Manipulate individual genes 12 What 2 things does the twisted ladder model help explain? (choose 2) Choose one or more answers a Give instructions to a cell b Be able to be copied each time a cell divides c How DNA copies d How DNA functions in a cell 13 Why must DNA be able to be copied? a So each cell contains identical genes b So each cell contains different genes c So each cell combines to form a double helix d So each cell acts on its own 14 The amount of Adenine will always equal the amount of a Thymine b Guanine c Cytosine d Dinosine 15 The amount of Guanine will always equal the amount of a Thymine b Adenine c Cytosine d Dinosine 16 Rosland Franklin used a process called _______________ to make images of DNA molecules a x-ray diffracton b mutation c sublimation d replication 17 What shape did Rosland Franklin's images show? a spiral shape b twisted ladder shape c pair of bases d double helix 18 What did James Watson and Francis Crick’s model of DNA look like? a spiral shape b twisted ladder shape c pair of bases d double helix 19 The rungs on the DNA ladder are made of what? a spiral shape b twisted ladder shape c pair of bases d double helix 20 What is the twisted ladder shape of DNA called? a spiral shape b replication ladder c pair of bases d double helix 21 Sugar and phosphate parts form a the sides of the ladder b the base of the ladder c the rungs of the ladder d the top of the ladder 22 What does the pairing of bases allow the cells to do? a replicate b delete c insert d subsitute 23 Make copies of DNA a replicate b substitute c insert d mutate 24 Both sides of DNA molecules are complementary, binding only with their match. a True b False 25 DNA is copied every time a cell divides a True b False 26 What item within the cell helps with unwinding, copying, and rewinding DNA? a Proteins b Nucleotides c Adenine d Sugar 27 Where does the molecule split during replication? a Middle b Top c Bottom d Side 28 After a DNA molecule splits, what are added to each side of the ladder? a Complementary nucleotides b Transfer nucleotides c Amino acids d Transfer RNA 29 Why does the double helix structure match Chargaff’s observation? a A always pairs with T in equal amounts and C always pairs with G in equal amounts. b A always pairs with C in equal amounts and T always pairs with G in equal amounts. c A always pairs with G in equal amounts and C always pairs with T in equal amounts. 30 Scientists were surprised about how much the DNA molecule could do, because they thought only what could give instructions and be copied during cell division? a complex molecules b complex nucleotides c complementary nucleotides d ribosomes
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