In a transformation experiment,DNA of a p⁺q⁺ strain was used to transform a recipient strain that is auxotrophic for these markers.The number of each class of transformants is shown below:
$\begin{array} { | c | c | c | } \hline \text { Class } & \text { Genotype } & \text { Number } \\\hline 1 & \mathrm { p } ^ { + } \mathrm { q } ^ { + } & 405 \\\hline 2 & \mathrm { p } ^ { + } \mathrm { q } ^ { - } & 300 \\\hline 3 & \mathrm { p } ^ { - } \mathrm { q } ^ { + } & 195 \\\hline\end{array}$
a)If the total number of transformants isolated was 900,what is the co-transformation frequency for the p and q loci?
b)Use diagrams to show how each class of transformants were obtained starting with the recipient auxotroph.

Question

In a transformation experiment,DNA of a p⁺q⁺ strain was used to transform a recipient strain that is auxotrophic for these markers.The number of each class of transformants is shown below:

\begin{array} { | c | c | c | } \hline \text { Class } & \text { Genotype } & \text { Number } \\\hline 1 & \mathrm { p } ^ { + } \mathrm { q } ^ { + } & 405 \\\hline 2 & \mathrm { p } ^ { + } \mathrm { q } ^ { - } & 300 \\\hline 3 & \mathrm { p } ^ { - } \mathrm { q } ^ { + } & 195 \\\hline\end{array}

a)If the total number of transformants isolated was 900,what is the co-transformation frequency for the p and q loci?
b)Use diagrams to show how each class of transformants were obtained starting with the recipient auxotroph.

Quizplus · Accepted Answer

The Answer of In a transformation experiment,DNA of a p⁺q⁺ strain was used to transform a recipient strain that is auxotrophic for these markers.The number of each class of transformants is shown below: $$\begin{array} { | c | c | c | } \hline \text { Class } & \text { Genotype } & \text { Number } \ \hline 1 & \mathrm { p } ^ { + } \mathrm { q } ^ { + } & 405 \ \hline 2 & \mathrm { p } ^ { + } \mathrm { q } ^ { - } & 300 \ \hline 3 & \mathrm { p } ^ { - } \mathrm { q } ^ { + } & 195 \ \hline \end{array}$$ a)If the total number of transformants isolated was 900,what is the co-transformation frequency for the p and q loci? b)Use diagrams to show how each class of transformants were obtained starting with the recipient auxotroph.

In a Transformation Experiment,DNA of a P+q+ Strain Was Used

In a Transformation Experiment,DNA of a P⁺q⁺ Strain Was Used