True statements about genes of galactose metabolism in Yeast;

TLS Online TPP Program

#Question id: 1639

#SCPH01 Biochemistry

T-cell surface receptors for antigen partly recognize:

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#Question id: 21001

#SCPH06 I Botany

Bioremediation of inorganic contaminants is primarily based on suitable 

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#Question id: 2624

#SCPH05 I Biotechnology

What is negative regulation of lac operon

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#Question id: 16125

#SCPH01 Biochemistry

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: 19300

#SCPH06 I Botany

Several gene transfers have been aimed at improving the produce quality by improving, 

1. Protein quality

2. Lipid quality

3. Carbohydrate quality

Which among the following is correct combination?