A process in which a suspension of microbes is quickly frozen at temperatures ranging from - 54°C to -72°C, and the water is removed by a high vacuum (sublimation) 

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#Question id: 20102

#XL - P Chemistry

The enthalpy change for a given reaction at 298 K is – x J mol^–1 (x being positive). If the reaction occurs spontaneously at 298 K, the entropy change at that temperature

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#Question id: 422

#XL - S Microbiology

The flow of material through a reaction pathway usually depends on ________.

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#Question id: 5325

#XL - T Zoology

Cystic fibrosis is caused by a recessive lethal gene and can be detected by an excess concentration of chloride in sweat. A normal man whose sister has cystic fibrosis, his normal wife whose brother has cystic fibrosis. What is chance of cystic fibrosis in their child?

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#Question id: 1695

#XL - Q Biochemistry

The processed peptide binding to the MHC class I groove:

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#Question id: 793

#XL - T Zoology

What is the average size (in bp) of a mature t-RNA?