In a first order reaction, 10% of the reactant is consumed in 25 minutes. Calculate : 

(1)The time required for completing 87.5% of the reaction.

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#Question id: 4582

#SCPH28 | Zoology

 Fossils found in strata reveal that ________.

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#Question id: 11915

#SCPH28 | Zoology

Which of the following is the correct prediction about the three types of model such as; Facilitation, Inhibition, Tolerance model.

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#Question id: 5432

#SCPH28 | Zoology

which of the following are not feature of polygenic inheritance ?

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#Question id: 3027

#SCPH28 | Zoology

Which of the following contains a copy of the chromosome, along with a small amount of dehydrated cytoplasm, within a tough wall?

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#Question id: 15618

#SCPH01 Biochemistry

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?