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Генетика (1223)

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Зображення

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Illustration of amniocentesis, in which a sample of amniotic fluid is removed and tested to detect fetal age and sex, chromosome abnormalities (a chart of normal female chromosomes is shown, top right), neural tube defects, inherited diseases, and fetal Rh factor sensitization. Risks include infection, membrane rupture, fetal injury, and premature labor.

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Conceptual image of a DNA chip matching pieces of DNA to complementary strands in an array of incrementally varied DNA samples embedded on silicon. This is done to identify specific nucleotide sequences that can be linked to cancer traits, e.g., virulence, metastatic potential, or susceptibility to bioengineered drugs, to create individual cancer treatments.

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Illustration of various of biomarkers. These include mitochondrial DNA, bloodborne viral particles, single nucleotide polymorphisms (SNP's, or snips), nuclear debris from apoptotic cells, tyrosine kinase receptors, and other metabolic pathway proteins. They are used to track down cancers and identify processes vulnerable to therapeutic intervention.

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Illustration of the cell cycle. Each stage is defined by changes in the cell as chromosomal replication and other metabolic activities proceed during mitosis. The various stages present discrete targeting opportunities in cancer therapy.

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Illustration of the cell cycle. Each stage is defined by changes in the cell as chromosomal replication and other metabolic activities proceed during mitosis. The various stages present discrete targeting opportunities in cancer therapy.

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Conceptual photocomposite of genetics, showing a silhouetted man standing below a strand of DNA and a face in the background.

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Illustration of body movement during exercise showing a woman stepping in phase with her skeleton.

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Illustration of body movement during exercise showing a woman stepping in phase with her skeleton.

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Illustration of a woman exercising, with dual reflections.

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Illustration of a woman exercising, with dual reflections.

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Illustration of a hand holding a glowing test tube, the concept of a scientific breakthrough.

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Illustration of a hand holding a glowing test tube, the concept of a scientific breakthrough.

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Concept of using human genetic information to develop medicines.

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Concept of using human genetic information to develop medicines.

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Conceptual illustration of human cloning, with computer circuits and DNA codes.

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Conceptual illustration of human cloning, with computer circuits, DNA codes, and a DNA double-helix.

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Conceptual illustration of human cloning, with computer circuits and DNA codes.

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Conceptual illustration of human cloning, represented by a chain of paper dolls and DNA codes.

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Conceptual illustration of human cloning, represented by a chain of paper dolls.

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Conceptual illustration of human cloning, represented by a chain of paper dolls and DNA codes.

вгору

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