Biology
When the concentration of water and solutes on either side of the cell membrane is same, the solution is said to be

None of these
Hypotonic
Isotonic
Hypertonic

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Biology
Neurospora is used as genetic material because

meiotic products are linearly arranged in the form of ordered tetrads
it has short life cycle of 10 days
the product of single meiosis can be easily analysed
is a diploid fungus

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Biology
One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor's statement?

You are infected by a virus
You need to be vaccinated instead of taking an antibiotic
Having waited a day, it is too late to take an antibiotic
You need an antiseptic, not an antibiotic

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