Practice Questions

TLS Online TPP Program

#Question id: 16129

5 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.
Describe the cis-acting elements in the GLN1 promoter that are evident from these experiments, giving both their position and as much of their function as you can deduce.

#SCPH01 Biochemistry

Deletion1 : GLN2 function, Deletions 3, 4 : GLN3 function, contain TATA, Deletion 6: sequence contain UAS Sequence -involved in activation.
Deletion1 : GLN3 function, Deletions 3, 4 : GLN2 function, contain UAS Sequence -involved in activation, Deletion 6: contain TATA sequence.
Deletion1 : GLN2 function, Deletions 3, 4 : GLN3 function, contain UAS Sequence -involved in activation, Deletion 6: contain TATA sequence.
Deletion1, 3 and 4 : GLN3 function, contain UAS Sequence -involved in activation, Deletion 6: contain TATA sequence.

More Questions

TLS Online TPP Program

#Question id: 3630

#SCPH12 I Genetics

In the pearl-millet plant, color is determined by three alleles at a single locus: Rp1 (red), Rp2 (purple), and rp (green). Red is dominant over purple and green, and purple is dominant over green (Rp1 > Rp2 > rp). What will be expected phenotypes and ratios of offspring produced by the Rp1/rp × Rp2/rp crosses?

TLS Online TPP Program

#Question id: 16391

#SCPH28 | Zoology

What is the effect of alarm reaction?

TLS Online TPP Program

#Question id: 18219

#SCPH01 Biochemistry

Pseudoknot loop refers to

TLS Online TPP Program

#Question id: 10944

#I Life Science/ Life Sciences Group – I-V

Where does the transmigration of WBCs occur in response to infectious agents?