The first immunoassay formats described were methods based on the ____ reaction, which is characterised either by gel formation in a liquid phase or as an opaque band in an agar plate assay.

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#Question id: 760

#XL - Q Biochemistry

Which force can stabilize a DNA double-helix?

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#Question id: 4979

#XL - S Microbiology

The dicynodonts that survived the Permian extinction would initially have had to endure (or escape from) the physical effects of __________, and subsequently, the biological effects of __________.

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#Question id: 9575

#XL - T Zoology

The warm counter current known as El niño moves southward along the coast of peru each year around christmastime. When this counter current flows strongly, it displaces the cold peru current offshore and results in:

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#Question id: 19565

#XL - P Chemistry

Inorganic graphite is ———–

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#Question id: 8915

#XL - T Zoology

The number of legs an insect has, the number of vertebrae in a vertebral column, or the number of joints in a digit (such as a finger) are all strongly influenced by