Plant Kingdom Question 616
Question: Assertion : Male cone of Pinus is equivalent to stamens of angiosperms. Reason : Male cone bears pollen grains.
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 the assertion is false but reason is true
Show Answer
Answer:
Correct Answer: D
Solution:
The male cone consists of spirally arranged microsporophylls.
Each microsporophyll bears two microsporangia or pollen sacs and therefore, they are considered equivalent to the stamens of angiosperms.
Pollen grains of Pinus, consist of a body or corpus and the air sacs or ?sacci?.
The wing or sacci are separated from the body or the corpus by the saccate exine or the inner layer of the exine.
BETA
