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Author Question: A scientist is studying a gene (grn) carried by a bacteriophage that allows a host bacterium to ... (Read 82 times)

CQXA

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on: Jan 12, 2022
A scientist is studying a gene (grn) carried by a bacteriophage that allows a host bacterium to produce a green metabolic product before lysis. The scientist has four bacteriophage mutants for this gene. Mutant 1 has a nonrevertible mutation in grn while Mutants 2, 3, and 4 each have a revertible mutation in grn. After plating pairs of mutants and subsequent coinfection of host cells, the scientist observed the following:
I.Mutants 1 and 2: no green product
II.Mutants 1 and 3: very rare green product
III.Mutants 1 and 4: rare green product

Which of the following is NOT consistent with these observations?
◦ A partial deletion in Mutant 1 overlaps a base-pair substitution in Mutant 2.
◦ Mutant 2 has a base-pair substitution at a different site than Mutant 3.
◦ Mutant 3 has a base-pair substitution at a different site than Mutant 4.
◦ Mutant 1's deletion is closer to the base-pair substitution in Mutant 3 than it is to the base-pair substitution in Mutant 4.
◦ A green product should be observed if coinfection occurs with mutants 3 and 4.
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Marked as best answer by CQXA on Jan 12, 2022

mbcrismon

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Reply #1 on: Jan 12, 2022
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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CQXA

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Reply 2 on: Jan 12, 2022
YES! Correct, THANKS for helping me on my review

xiazhe

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Reply 3 on: Yesterday
:D TYSM

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