TLS Online TPP Program

#Question id: 3707


The replication of DNA is ________ because ________.

#Section 3: Genetics, Cellular and Molecular Biology
  1. conservative; one strand of parental DNA is retained in each daughter DNA

  2. conservative; each daughter molecule has two new strands copied from the parental DNA template

  3. semiconservative; one strand of parental DNA is retained in each daughter DNA

  4. semiconservative; each daughter molecule has two new strands copied from the parental DNA template

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TLS Online TPP Program

#Question id: 5240

#Section 3: Genetics, Cellular and Molecular Biology

If bacteria grow in the presence of a large amount of DNase, which of the following recombination process completely inhibited?

TLS Online TPP Program

#Question id: 5241

#Section 3: Genetics, Cellular and Molecular Biology

Genes a, b, and c are widely spaced in the bacterial genome. Transducing phage from an a+ b+ c+ bacterium were used to infect a culture of a- b- c- cells, and b+ transductants were selected. Which of the following best describes the predicted genotypes of these transductants?

TLS Online TPP Program

#Question id: 5242

#Section 3: Genetics, Cellular and Molecular 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?

TLS Online TPP Program

#Question id: 5243

#Section 3: Genetics, Cellular and Molecular 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?

TLS Online TPP Program

#Question id: 5244

#Section 3: Genetics, Cellular and Molecular Biology

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

TLS Online TPP Program

#Question id: 5244

#Section 3: Genetics, Cellular and Molecular Biology

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