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#Question id: 12925
#SCPH28 | Zoology
Another name of TaqMan assay is ____
TLS Online TPP Program
#Question id: 15536
#SCPH05 I Biotechnology
Which of the following is incorrect regarding the progressive alignment method?
TLS Online TPP Program
#Question id: 9566
#SCPH06 I Botany
Which of the following adaptations helps kangaroo rats conserve water?
TLS Online TPP Program
#Question id: 16128
#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.
Next, you decide to evaluate the promoter for the GLN1 gene. To do this you first fuse the promoter region to the LacZ coding sequence and then place this hybrid gene on an appropriate yeast plasmid. You find that cells carrying the hybrid gene express activity under the same conditions that GS is expressed in wild type cells, meaning that the promoter region you have selected contains all of the necessary cis-acting sequences for normal regulation. The figure below shows the effect of different 50 bp deletions in the promoter region on the amount of ß-galactosidase activity expressed by the reporter gene. how would you expect a gln2– gln3– double mutant to behave?
TLS Online TPP Program
#Question id: 11677
#SCPH28 | Zoology
Which of the following contribute to maintaining the
high osmolarity of the renal medulla?
I) active transport of salt from the upper region of
the ascending limb
II) the spatial arrangement of juxtamedullary nephrons
III) diffusion of urea from the collecting duct
IV) diffusion of salt from the descending limb of the loop of Henle