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For complete HFR to enter the recipient, how much time should the two bacterial cells be in contact?

(a) 10 mins

(b) 30 mins

(c) 60 mins

(d) 100 mins

The question was asked in an international level competition.

This intriguing question originated from Gene Mapping in Bacteria by Conjugation topic in portion Genomics : The Mapping and Sequencing of Genomes of Cytogenetics

1 Answer

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Correct option is (d) 100 mins

To explain: The two participating bacteria taking part in conjugation should actually stay connected by conjugation tube for 100 minutes for the entire chromosome i.e. HFR to get transferred. However, as they are constantly in motion such occurrence is rare.

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