For a pair of interacting species, increased specialization and decreased niche breadth in both species would result in

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#Question id: 15618

#SCPH28 | Zoology

Wild type E. coli metabolizes the sugar lactose by expressing the enzyme ß-galactosidase. You have isolated a mutant that you call lac1-, which cannot synthesize ß-galactosidase and cannot grow on lactose (Lac-). During an condition  isolate  a second Lac– mutation, which you designate lac2-. Using P1 phage on this strain and use the resulting phage lysate to infect the lac2- strain, selecting for   Kanr   transductants. In this case, all 100   Kanr   transductants that are examined are Lac–. What does this result tell you about the relationship between the lac1- and lac2- mutations?

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#Question id: 12908

#SCPH01 Biochemistry

Which statement is incorrect about CRISPR?

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#Question id: 4755

#SCPH01 Biochemistry

When two albino snails were crossed, all of the F1 were pigmented. All F1 intercross would results

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#Question id: 12959

#SCPH06 I Botany

Ozone layer depletion, since the 1970s, is primarily

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#Question id: 2266

#I Life Science/ Life Sciences Group – I-V

In bacteria, some of the functions of eukaryotic cells are performed