An amino acid contains no ionizable group in its side chain (R). It is titrated from pH 0 to 14. Which of the following ionizable state is not observed during the entire titration in the pH range 0 - 14?

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#Question id: 5242

#Unit 8. Inheritance Biology

Auxotrohic bacteria plating on different medium, it is observed that colonies grow on minimal plus threonine only, no colony on minimal plus leucine and no colonies grow on minimal medium cystein only. What are the actual genotypes of auxotroph?

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#Question id: 5243

#Unit 8. Inheritance Biology

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: 5244

#Unit 8. Inheritance Biology

Transformation can used to map bacterial gene, which of the following statement is correct?

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#Question id: 5245

#Unit 8. Inheritance Biology

Which method of gene transfer involves direct contact between the bacteria?

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#Question id: 5246

#Unit 8. Inheritance Biology

The end result of F factor mediated conjugation:

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#Question id: 5247

#Unit 8. Inheritance Biology

Which of the following is not a protein or group of proteins required for conjugation to occur?