Biology Terms

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DNA polymerase

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An enzyme that synthesizes DNA molecules from deoxyribonucleotides, the building blocks of DNA.

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DNA sequence

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The precise order of nucleotides within a DNA molecule.

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double helix

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The structure formed by double-stranded molecules of nucleic acids such as DNA.

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electrophoresis

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A laboratory technique used to separate DNA, RNA, or protein molecules based on their size and electrical charge.

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endocytosis

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A cellular process in which substances are brought into the cell.

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endoplasmic reticulum

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An organelle in cells that is involved in the synthesis, folding, modification, and transport of proteins.

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enzyme

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A protein that acts as a catalyst to accelerate a chemical reaction.

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Erwin Chargaff

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A biochemist known for Chargaff's rules, which helped lead to the discovery of the DNA double helix structure.

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ethics

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Moral principles that govern a person's behavior or the conducting of an activity.

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eukaryote

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An organism whose cells contain a nucleus and other organelles enclosed within membranes.