Calculate △G°ʹ for the reaction shown if the mass action ratio, Q, is 5.3 × 102 M-1 and △G is 46 kJ/mol at a temperature of 298 K. (R = 8.315 J/K-mol)

ADP + Pi ⇌ ATP

TLS Online TPP Program

#Question id: 13075

#SCPH01 Biochemistry

Radioisotopes must be used in RFLP and RAPD markers

TLS Online TPP Program

#Question id: 16129

#SCPH01 Biochemistry

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.

TLS Online TPP Program

#Question id: 3539

#SCPH01 Biochemistry

In cucumbers, orange fruit color (R) is dominant over cream fruit color (r). A cucumber plant homozygous for orange fruits is crossed with a plant homozygous for cream fruits. What are phenotype of progeny if backcross between the F1 and the orange parent.

TLS Online TPP Program

#Question id: 3666

#SCPH28 | Zoology

RNA-directed RNA polymerase, used in replication of some RNA viruses termed as:

TLS Online TPP Program

#Question id: 8897

#SCPH28 | Zoology

Which of the following statements would be least acceptable to most zoologists?