Biological Classification And System Of Classification Question 29
Question: In which of the following there is no sexual reproduction
[MP PMT 1987; CBSE PMT 1995, 99; BVP 2001]
Options:
A) Ulothrix
B) Nostoc
C) Aspergillus
D) Volvox
Show Answer
Answer:
Correct Answer: B
Solution:
Ulothrix species are unbranched filamentous green algae. Reproduction in Ulothrix takes place by means of vegetative, asexual and sexual methods.
Nostoc is free-living nitrogen-fixing cyanobacteria having cells arranged in beadlike chains (trichomes) that are grouped together in a gelatinous mass (Nostoc balls).
Reproduction is only by vegetative and asexual methods.
Aspergillus is a genus of fungi in which reproduction occurs by asexual and sexual methods.
Volvox is a genus of freshwater green algae. Most species of Volvox reproduce both asexually and sexually.
BETA
