Question

You have three unknown bacteriophages (phage A, phage B, and phage C). To learn more about their characteristics, you've decided to first use a bacteria strain that has the genotype arg+ bio+ cys+ trp+ as a host for each of the different bacteriophages. You then transferred your phages into a solution with a bacteria strain that is arg- bio- cys- trp-. After a 24-hour incubation, you plated those phage-exposed cells on each of the different media types listed below and checked back later for growth. The order of the genes in the bacteria chromosome is arg--bio--cys--trp. | | minimal media | minimal media with arg and bio | minimal media with bio and trp | minimal media with bio and cys | |---|---|---|---|---| | bacteria exposed to phage A | no growth | growth | no growth | no growth | | bacteria exposed to phage B | no growth | no growth | no growth | growth | | bacteria exposed to phage C | no growth | growth | growth | growth | 1. Which phage is most likely undergoes generalized transduction? 2. Which phage most likely has an attachment site between the arg and trp genes? 3. Which phage most likely has an attachment site between the cys and trp genes? impossible to determine phage B phage C phage A

          You have three unknown bacteriophages (phage A, phage B, and phage C). To learn more about their characteristics, you've decided to first use a bacteria strain that has the genotype arg+ bio+ cys+ trp+ as a host for each of the different bacteriophages. You then transferred your phages into a solution with a bacteria strain that is arg- bio- cys- trp-. After a 24-hour incubation, you plated those phage-exposed cells on each of the different media types listed below and checked back later for growth. The order of the genes in the bacteria chromosome is arg--bio--cys--trp.

| | minimal media | minimal media with arg and bio | minimal media with bio and trp | minimal media with bio and cys |
|---|---|---|---|---|
| bacteria exposed to phage A | no growth | growth | no growth | no growth |
| bacteria exposed to phage B | no growth | no growth | no growth | growth |
| bacteria exposed to phage C | no growth | growth | growth | growth |

1. Which phage is most likely undergoes generalized transduction?
2. Which phage most likely has an attachment site between the arg and trp genes?
3. Which phage most likely has an attachment site between the cys and trp genes?
impossible to determine
phage B
phage C
phage A

You have three unknown bacteriophages (phage A, phage B, and phage C). To learn more about their characteristics, you've decided to first use a bacteria strain that has the genotype arg+ bio+ cys+ trp+ as a host for each of the different bacteriophages. You then transferred your phages into a solution with a bacteria strain that is arg- bio- cys- trp-. After a 24-hour incubation, you plated those phage-exposed cells on each of the different media types listed below and checked back later for growth. The order of the genes in the bacteria chromosome is arg–bio–cys–trp.

| | minimal media | minimal media with arg and bio | minimal media with bio and trp | minimal media with bio and cys |
|—|—|—|—|—|
| bacteria exposed to phage A | no growth | growth | no growth | no growth |
| bacteria exposed to phage B | no growth | no growth | no growth | growth |
| bacteria exposed to phage C | no growth | growth | growth | growth |

1. Which phage is most likely undergoes generalized transduction?
2. Which phage most likely has an attachment site between the arg and trp genes?
3. Which phage most likely has an attachment site between the cys and trp genes?
impossible to determine
phage B
phage C
phage A

Added by Jocelyn M.

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