If a fair die is rolled 4 times, then what is the probability that there are exactly 2 sixes ?

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#Question id: 20312

#Unit 7. System Physiology – Animal

Aldosterone not only causes potassium to be secreted into the tubules in exchange for sodium reabsorption in the principal cells of the renal collecting tubules but also causes 

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#Question id: 14484

#Unit 13. Methods in Biology

Find the chance of throwing more than 15 in one throw with 3 dice

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#Question id: 10414

#Unit 6. System Physiology – Plant

Plants have evolved with multiple photoreceptors, Phytochrome is one of them. Which of the following statements is incorrect about these photoreceptors?

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#Question id: 17814

#Unit 7. System Physiology – Animal

Chronic stress can lead to ______.

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#Question id: 3709

#Unit 3. Fundamental Processes

DNA that has been liberally labeled with radioactive 14C is used as the template for replication. Replication is carried out in a medium containing only unlabeled nucleotides. After two rounds of replication, what percent of DNA molecules are still labeled?