Process through which temperate phages reproduce while dormant. QUESTION 3 str+

Question

Process through which temperate phages reproduce while dormant. QUESTION 3 str+ is mated with an F- strain carrying the genotype cys- pro-gly- str. In an An Hfr strain with the genotype cys+ pro+ gly+ interrupted mating experiment, small samples of the conjugating bacteria are withdrawn every 3 minutes for 30 mimutes. The withdrawn cells are shaken vigorously to stop conjugation and then placed on three different selection media, composed as follows: 3 minutes for 30 minutes. The withdrawn Medium 1: Minimal medium plus proline, glycine, and streptomycin Medium 2: Minimal medium plus cysteine, glycine, and streptomycin Medium 3: Minimal medium plus cysteine. proline, and streptomycin What donor gene is the selected marker in each medium? Medium 1 Medium 2 Medium 3 A- cysteine B glycine proline QUESTION 4

Explanation / Answer

Question 3.
The answer is
Medium 1 - Cystenine
Medium 2 - Proline
Medium 3 - Glycine

Question 4.
The answer is
As the media is composed with proline, glycine and streptomycin., all bacteria except with Cysteine can grow here.
The answers are
2, 3, 6 and 7

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