DNA Structure & Function Quiz

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Test your DNA knowledge.

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Isabella Svoboda

United States

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DNA Structure & Function Quiz


DNA Structure & Function QuizVersion en ligne Test your DNA knowledge. par Isabella Svoboda 1 What backbone forms the sides of the DNA double helix? a Lipid bilayer b Protein backbone c Peptide backbone d Sugar-phosphate backbone 2 Which bases pair with each other in DNA? a A with G, C with T b A with U, C with G c A with T, C with G d A with C, T with G 3 What structural feature is characteristic of DNA? a Triple helix b Quadruple strand c Single helix d Double helix with antiparallel strands 4 Which base pairing has 2 hydrogen bonds? a Adenine–Cytosine (A–C) b Adenine–Thymine (A–T) c Guanine–Thymine (G–T) d Guanine–Cytosine (G–C) 5 Which base pairing has 3 hydrogen bonds? a Thymine–Cytosine (T–C) b Adenine–Guanine (A–G) c Adenine–Thymine (A–T) d Guanine–Cytosine (G–C) 6 What is the role of DNA polymerase? a Makes proteins b Transcribes RNA c Repairs lipids d Synthesizes new DNA strands during replication 7 Which process uses DNA as a template to make RNA? a Translocation b Replication c Transcription d Translation 8 What is semi-conservative replication? a DNA is copied twice b Each new DNA molecule has one old and one new strand c DNA is not copied at all d Both strands are new 9 Where in the cell is DNA primarily stored in eukaryotes? a Ribosome b Nucleus c Golgi apparatus d Cytoplasm 10 Which part of DNA carries genetic information? a Nucleotide sequence b Backbone structure c Sugar units only d Protein code 11 Which base is unique to RNA and not found in DNA? a Cytosine b Uracil c Thymine d Guanine 12 What sugar is found in RNA? a Fructose b Deoxyribose c Glucose d Ribose 13 Which base pairs with adenine in RNA? a Uracil b Thymine c Guanine d Cytosine 14 What is the primary function of mRNA? a Carry genetic information to ribosomes for protein synthesis b Catalyze reactions c Regulate DNA replication d Store amino acids 15 Which RNA transports amino acids during translation? a snRNA b mRNA c tRNA d rRNA 16 Which RNA forms the core of ribosomes? a snRNA b mRNA c tRNA d rRNA 17 Which bases are purines? a Adenine and Guanine b Cytosine and Uracil c Adenine and Cytosine d Guanine and Uracil 18 Which base pairs with cytosine in RNA? a Thymine b Adenine c Guanine d Uracil 19 Which RNA type plays a role in splicing and gene regulation? a rRNA b tRNA c snRNA d mRNA 20 What characterizes RNA structure generally? a Triple helix b Single-stranded molecule c Double helix like DNA d Rigid polymer 21 What molecule carries genetic information from DNA to the ribosome during gene expression? a rRNA b mRNA c DNA d tRNA 22 Where does transcription primarily take place in eukaryotic cells? a Cytoplasm b Ribosome c Golgi apparatus d Nucleus 23 Which enzyme synthesizes RNA from a DNA template? a DNA polymerase b RNA polymerase c RNA ligase d Helicase 24 What is the start codon that marks the beginning of translation? a AUG b UAG c UGA d UAA 25 Which molecule carries amino acids to the ribosome during translation? a mRNA b tRNA c rRNA d DNA 26 Where does the process of translation take place? a Nucleus b Ribosome c Endoplasmic reticulum d Golgi apparatus 27 What is the three-nucleotide sequence called in mRNA? a Anticodon b Nucleotide c Triplet d Codon 28 What enzyme activity forms peptide bonds between amino acids? a Peptidyl transferase b RNA polymerase c Ligase d Helicase 29 What is a completed, folded chain of amino acids called? a Polypeptide b Carbohydrate c Nucleic acid d Lipid 30 Which factor promotes termination of translation at a stop codon? a Release factor b mRNA c Ribosome d tRNA

DNA Structure & Function Quiz

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DNA Structure & Function QuizVersion en ligne

par Isabella Svoboda

What backbone forms the sides of the DNA double helix?

Which bases pair with each other in DNA?

What structural feature is characteristic of DNA?

Which base pairing has 2 hydrogen bonds?

Which base pairing has 3 hydrogen bonds?

What is the role of DNA polymerase?

Which process uses DNA as a template to make RNA?

What is semi-conservative replication?

Where in the cell is DNA primarily stored in eukaryotes?

Which part of DNA carries genetic information?

Which base is unique to RNA and not found in DNA?

What sugar is found in RNA?

Which base pairs with adenine in RNA?

What is the primary function of mRNA?

Which RNA transports amino acids during translation?

Which RNA forms the core of ribosomes?

Which bases are purines?

Which base pairs with cytosine in RNA?

Which RNA type plays a role in splicing and gene regulation?

What characterizes RNA structure generally?

What molecule carries genetic information from DNA to the ribosome during gene expression?

Where does transcription primarily take place in eukaryotic cells?

Which enzyme synthesizes RNA from a DNA template?

What is the start codon that marks the beginning of translation?

Which molecule carries amino acids to the ribosome during translation?

Where does the process of translation take place?

What is the three-nucleotide sequence called in mRNA?

What enzyme activity forms peptide bonds between amino acids?

What is a completed, folded chain of amino acids called?

Which factor promotes termination of translation at a stop codon?