A DNA sample has a 260/280 ratio of 2. Which of the following treatments can be used to get a better purity of DNA sample?

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#Question id: 18014

#13. Methods in Biology

Each of five questions on a multiple-choice examination has four choices, only one of which is correct. The student is attempting to guess the answers. The random variable X is the number of questions answer correctly. Probability that the student will get Atmost three correct answers

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#Question id: 18383

#12. Applied Biology

What compounds are considered as recalciterants?

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#Question id: 9275

#6. System Physiology – Plant

The colour of carrots, is due to;

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#Question id: 23462

#Aptitude

Statement— Should all the annual examinations up to Std. V be abolished?

Arguments—

I)Yes the young student should not be burdened with such examinations which hampers their natural growth.

II) No. The students will not study seriously as they will get automatic promotion to the next class and this will affect them in future.

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#Question id: 11475

#7. System Physiology – Animal

Rods exposed to light will ________.