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: 3627

#SCPH06 I Botany

A cross is made between two plants with white flowers. All the F1 progeny had red colored flower. This is because of

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#Question id: 12911

#SCPH01 Biochemistry

Match the following:

A. DNA polymerases              i. Alkaline phosphatase        a.RNA-dependent DNA polymerase, used in cDNA synthesis

B. Reverse transcriptase        ii. T4 DNA ligase                    b. Thermostable DNA polymerase used in PCR

C. Ligases                                 iii.  AMV-RT                            c. Removes 5′-phosphates from DNA and RNA

D. Phosphatases                     iv. Taq DNA pol                      d. Links 5′-phosphate and 3′-hydroxyl ends via phosphodiester bond

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#Question id: 18010

#SCPH05 I Biotechnology

Which of the following is not an example of 2-D gel based computational tool-

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#Question id: 15231

#SCPH06 I Botany

Which of the following is true for Capillary electrophoresis (CE) resolution

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#Question id: 2620

#SCPH05 I Biotechnology

Which option is correct about catabolite activator protein binds as