In a sequence logo of the type given below, the sizes of the letters are proportional to the:

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#Question id: 4343

#SCPH28 | Zoology

Suppose an experimenter becomes proficient with a technique that allows her to move DNA sequences within a prokaryotic genome. If a researcher moves the repressor gene (lacI), along with its promoter, to a position at some several thousand base pairs away from its normal position, which of the following results would be expected?

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#Question id: 19336

#SCPH06 I Botany

Which one of the following biosensors is used for therapeutic applications?

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#Question id: 16125

#SCPH06 I Botany

You are studying regulation of the yeast enzyme glutamine synthetase (GS), which is encoded by the GLN1 gene. You have isolated two mutants, designated gln2– and gln3–, that give decreased GS activity. Mating of either gln2– or gln3– haploids to wild type produces heterozygous diploids that show normal amounts of GS expression. When you cross either a gln2– or gln3– haploid to a gln1– strain the resulting diploids show normal expression of GS.              

From these experiments,  Classify  the  gln2– and gln3– mutations in terms of their basic genetic properties explaining the rationale behind your conclusions. Based on these properties make a proposal for the types of regulatory functions affected by the gln2– and gln3– mutations.

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#Question id: 2357

#SCPH28 | Zoology

The semi-fluid portion of the nucleus is called the ____.

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#Question id: 20052

#SCPH28 | Zoology

HCG-kit is based on the phenomenon of