Table 8.1
$\text { Culture } 1: \mathrm{F}^{+} \text {, leucine }{ }^{+} \text {, histidine }{ }^{+}$
$\text { Culture 2: } \mathrm{F}^{-} \text {, leucine-, histidine- }$
-In Table 8.1, if culture 1 mutates to Hfr, what will be the result of conjugation between the two cultures?

Question

Table 8.1 
$\text { Culture } 1: \mathrm{F}^{+} \text {, leucine }{ }^{+} \text {, histidine }{ }^{+}$
$\text { Culture 2: } \mathrm{F}^{-} \text {, leucine-, histidine- }$
-In Table 8.1, if culture 1 mutates to Hfr, what will be the result of conjugation between the two cultures?

Quizplus · Accepted Answer

When culture 1 mutates to Hfr (High frequency of recombination), it retains its characteristics (F+, leu+, his+) and can transfer part of its DNA to culture 2 during conjugation. Culture 2, being F- and lacking leucine and histidine, can receive these genes from culture 1 through recombination, potentially becoming leu+, his+. However, culture 2 does not become Hfr as the entire F factor is not typically transferred during Hfr conjugation.

Table 81 Culture 1:F+, leucine +, histidine +\text { Culture } 1: \mathrm{F}^{+} \text {, leucine }{ }^{+} \text {, histidine }{ }^{+} Culture 1:F+, leucine +, histidine +

Table 81 $\text { Culture } 1: \mathrm{F}^{+} \text {, leucine }{ }^{+} \text {, histidine }{ }^{+}$