Insertional inactivation of the lacZ gene on a plasmid can be used to screen for recombinants on a plate containing:

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#Question id: 421

#SCPH28 | Zoology

The flow of material through a metabolic pathway is called the ________

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#Question id: 11756

#SCPH28 | Zoology

A 65-year-old man has a heart attack and experiences cardiopulmonary arrest while being transported to the emergency room. The following laboratory values are obtained from arterial blood:

plasma pH = 7.12,

plasma PCO2 = 60mm Hg, and

plasma HCO3− concentration = 19 mEq/L.

Which of the following best describes his acid-base disorder?

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#Question id: 8292

#SCPH05 I Biotechnology

Some molecular data place the giant panda in the bear family (Ursidae) but place the lesser panda in the raccoon family (Procyonidae). If the molecular data best reflect the evolutionary history of these two groups, then the morphological similarities of these two species is most likely due to ________.

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#Question id: 18592

#SCPH06 I Botany

Flowering plant first appeared in___

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#Question id: 13032

#I Life Science/ Life Sciences Group – I-V

In SDS-PAGE, protein sample is first treated with detergent sodium dodecyl sulfate (SDS), in order to