Biological Classification And System Of Classification Question 249
Assertion : Slime moulds do not show alternation of generation. Reason : The sporangia bearing slime moulds represent diplophase.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
Show Answer
Answer:
Correct Answer: C
Solution:
Slime moulds do not exhibit alternation of generation.
The diploid plasmodium is a gametophyte.
Under certain conditions it bears sporangia.
The sporangia bearing plasmodium and spore-producing sporangia constitute the sporophyte generation.
It is during the diplophase that reduction division takes place at the time of differentiation of resting spore.
The resting spores germinate to produce the haploid, uninucleate swarm cells or myxamoebae.
The latter meet and fuse to form a zygote.
The haploid resting spores and the swarm cells or myxamoebae represent the haploid or gametophyte generation.
BETA
