Biology
Who discovered the insecticidal properties of DDT

R.H. Painter
Rachel Carson
Othmanzedicer
Paul Muller

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Biology
Neurospora is used as genetic material because

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

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