As fibroblasts form a three-dimensional structure in contact with the ECM, the cells bound to ECM:

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#Question id: 19147

#SCPH01 Biochemistry

Which of the following is incorrect regarding the terminologies of phylogenetics?

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#Question id: 19891

#SCPH01 Biochemistry

Which one of the following sensors uses light?

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#Question id: 16126

#SCPH06 I Botany

2 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, that could explain the effect of the gln2– and gln3– mutations on the regulation of GLN1.

The GLN1 gene shows a rather complex regulation in response to different amino acids. When either glutamate (glu) or glutamine (gln) is added to the medium, the amount of GS expression diminished and when both glutamate and glutamine are added to the medium GS expression is shut off completely. The effects of different mutants on the response to glu and gln are shown below.

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#Question id: 826

#SCPH01 Biochemistry

Which one is incorrect about the proteins with segments rich in Pro (P), Glu (E), Ser (S), and Thr (T), the so-called PEST proteins,

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#Question id: 17278

#SCPH01 Biochemistry

In DNA isolation, which of the following enzyme remove/digest proteins in presence of SDS or chelating agent