Question

Choose the correct answers from the alternatives given.
Zygospores are not generally formed in cultures of Rhizopus developed from a single spore due to:

• A. absence of (+) and (-) strains of hyphae
• B. presence of (+) and (-) strains of hyphae
• C. shortage of nutrients
• D. presence of light

Answer 1

The correct option is A absence of (+) and (-) strains of hyphae

Zygospore is formed by the fusion of haploid spores of the opposite strain of hyphae and the culture which is developed from single spore can not have hyphae of other strain.

So, the correct option is 'absence of (+) and (-) strains of hyphae'.