Auxotroph culture (His- and Lac-) culture of E. coli was mutagenised. On what media would one spread the mutagenised cells to select prototroph for both His+  and Lac+ cells?

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#Question id: 18706

#SCPH01 Biochemistry

Sources of thermostable DNA polymerases with proofreading (3′–5′ exonuclease) activity are given match them correctly

DNA polymerase                          Source

a. Tma                                      i. Thermotoga maritima

b. Deep vent tm                      ii. Pyrococcus furiosus

c. Tli                                      iii. Thermococcus litoralis

d. Pfu                                      iv.  Pyrococcus sp

e. Pwo                                      v. Pyrococcus woesi

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#Question id: 1394

#SCPH05 I Biotechnology

Apoptosis involves all but which of the following?

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#Question id: 745

#SCPH01 Biochemistry

The structure of RNA differs from that of DNA, as RNA contains:

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#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.

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#Question id: 4353

#SCPH01 Biochemistry

The cAMP receptor protein (CRP) is said to be responsible for positive regulation of the lac operon because __.