Question
Question: Assertion; Neurospora is commonly called water mould. Reason; It belongs to basidiomycetes fungi....
Assertion; Neurospora is commonly called water mould.
Reason; It belongs to basidiomycetes fungi.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B.Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
C.Assertion is correct but Reason is incorrect
D.Both Assertion and Reason are incorrect
Solution
Neurospora is an Ascomycete fungi genus. The name of the genus, meaning "nerve spore," refers to the distinctive axon-like striations on the spores. Neurospora crassa, a popular model organism in biology, is the best-known species in this genus. Both yeast and fungi are included in the Neurospora classification. Neurospora is sometimes referred to as an orange bread mould.
Complete answer:
-Pink / red bread mould or pink mould is generally called Neurospora. So ASSERTION
is incorrect.
-It belongs to the Ascomycete class: mushrooms or sac fungi. So the REASON is incorrect.
In experimental genetics, it is used as it can be easily grown in a given medium in the laboratory. It's a haploid mushroom. It is a heterothallic fungus having positive and negative mycelia, and a diploid zygote is formed by the somatic fusion of two haploid nuclei. The zygote forms 8-nuclei by one meiotic and another mitotic division and hence ascospores, a distinctive structure of ascomycetes is formed.
Hence option ‘D: Both Assertion and Reason are incorrect’ is the correct answer.
Additional Information: As a model organism, Crassa is used because it is easy to develop and has a haploid life cycle that makes genetic analysis simply because the offspring would exhibit recessive traits. The genetic recombination analysis is enabled by the organised arrangement of meiosis products in Neurospora ascospores.
Note: Neurospora is a fungus. It is, however, named Drosophila of the plant kingdom since, as Drosophila is used in the case of animals as a model organism for genetic studies, it (Neurospora) is often used as a model organism for genetic analysis studies.