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.