A mutation in an E. coli cell becomes active half-way through a round of replication. The cell completes the round of replication normally but then cannot start a second round. Which protein could be mutated?

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#Question id: 14509

#Unit 13. Methods in Biology

Aishwarya studies either computer science or mathematics everyday. If she studies computer science on a day, then the probability that she studies mathematics the next day is 0.6. If she studies mathematics on a day, then the probability that she studies computer science the next day is 0.4. Given that Aishwarya studies computer science on Monday, what is the probability that she studies computer science on Wednesday ?

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#Question id: 10494

#Unit 6. System Physiology – Plant

Sucrose is an osmotically active solute in guard cells, One implication of these osmoregulatory features is that stomatal opening & closing is associated with which of the following given statements?

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#Question id: 24457

#Unit 7. System Physiology – Animal

Which of the following parts of the eye has the greatest concentration of rods?

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#Question id: 3410

#Unit 11. Evolution and Behavior

1200 Birds population are present around costal area with allelic frequency of M1 .60 and M2 .40. During rainy time 200 birds come from nearest forest which has .30 frequency of M1 and .70 of M2 allele.  What will be allelic frequency of M2 in their recipient population of costal area?

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#Question id: 11273

#Unit 10. Ecological Principles

Use the following diagram of a hypothetical food web to answer the question. The arrows represent the transfer of energy between the various trophic levels. Which letter represents an organism that could only be a primary consumer and secondary carnivores respectively?