DNA structure, gene expression, and mutation types (point, frameshift, silent) tested at the introductory genetics level.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the overall three-dimensional shape of a DNA molecule?
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A double helix- What are the three components of a single DNA nucleotide?
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A phosphate group, a deoxyribose sugar, and a nitrogenous base- What five-carbon sugar is found in DNA?
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Deoxyribose- What five-carbon sugar is found in RNA?
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Ribose- In DNA base pairing, adenine pairs with which base?
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Thymine- In DNA base pairing, guanine pairs with which base?
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Cytosine- How many hydrogen bonds hold an adenine-thymine base pair together?
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Two- How many hydrogen bonds hold a guanine-cytosine base pair together?
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Three- Which two nitrogenous bases are classified as purines?
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Adenine and guanine- Which two nitrogenous bases are classified as pyrimidines in DNA?
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Cytosine and thymine- How are the two strands of a DNA double helix oriented relative to each other?
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Antiparallel, running in opposite directions- What forms the backbone of each DNA strand?
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Alternating sugar and phosphate groups- Which two scientists are credited with proposing the double helix model of DNA in 1953?
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James Watson and Francis Crick- What is the central dogma of molecular biology?
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Genetic information flows from DNA to RNA to protein- What is transcription?
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The process of copying a DNA sequence into RNA
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