Q. 35.0( 2 Votes )

Neurospora - an ascomycetes fungus has been used as a biological tool to understand the mechanism of plant genetics much in the same way as Drosophila has been used to study animal genetics. What makes Neurospora so important as a genetic tool?

Answer :

Due to following reasons Neurospora is used as a genetic tool :

• Fastest growing in vitro, can be grown in minimal media.


• Due to its haploid nature it can express both dominant as well as recessive traits.


• Analysis of genetic combination is facilitated by the ordered sequence of the products in the form of eight ascospores [result of meiosis and mitosis].


• Release of ascospores per ascus takes place systematically i.e. one by one, so that single ascospores in an orderly sequence can be isolated in successive single spore culture.


• All the seven chromosomes of Nuerospora are either telocentric and achrocentric. Hence genes can be easily mapped.


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