Plant Kingdom Question 146
Question: Assertion : Spirogyra shows haplontic life cycle. Reason : Zygotic meiosis occurs in Spirogyra.
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: A
Solution:
A life cycle characterized by a haploid thallus, and zygotic meiosis is called haplontic life cycle.
It is also called as haplobiontic because only a single type of free living individual is involved in the life cycle.
Spirogyra shows haplontic life cycle and therefore, it also shows zygotic nucleus.