What is the location of intron in tRNA

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#Question id: 20304

#Unit 7. System Physiology – Animal

Cortisol has a permissive effect on: 

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#Question id: 12380

#Unit 7. System Physiology – Animal

A person with normal body fluid volumes weighs 60 kg and has an extracellular fluid volume of approximately 12.8 L, a blood volume of 4.3 L, and a hematocrit of 0.4; 57% of his body weight is water. What is the approximate intracellular fluid volume?

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#Question id: 28529

#Unit 5. Developmental Biology

FACKEL (FK) encodes an enzyme which function as a critical for pattern formation during embryogenesis, such enzyme is know as___ 

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#Question id: 20289

#Unit 7. System Physiology – Animal

Which of the following is INCORRECT about insulinoma?

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#Question id: 15620

#Unit 13. Methods in Biology

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 Lac– strain, called lac3–, is linked to the Tn5 insertion. From a strain carrying the Tn5 insertion and lac3– mutation you isolate an F’ that caries a region of the chromosome that includes both Tn5 and the linked Lac region. Introduce this F’ into an F– strain carrying lac1– by selecting for Kanr. These merodiploids express ß-galactosidase normally. What does this result tell you about the relationship between the lac3– and lac1- mutations?