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Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique.
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Polymerase chain reaction (PCR) is a technique used to "amplify" small segments of DNA.
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Fluorescence in situ hybridization (FISH) provides researchers with a way to visualize and map the genetic material in an individual's cell.
Infographic
The X chromosome is part of sexual development and many other biological processes, including how some cats get their distinctive coat colors.
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A DNA microarray is a tool used to determine whether the DNA from a particular individual contains a mutation in genes.
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A biological pathway is a series of actions among molecules in a cell that leads to a certain product or a change in the cell.