Sexual Reproduction In Flowering Plant Question 20
Question: Read the assertion and reason carefully:
Ovary is surrounded by perianth. Reason : Endothelium is a modified mesodermal layer.
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:
Ovule is an integumented megasporangium in spermatophytes which develops into seed after fertilization.
In most plants belonging to the sympetalae with unitegmic tenninucellate ovules, the nucellus degenerates at an early stage of ovule development and the innermost layer of integument becomes specialised to perform the nutritive function for the embryo sac.
This specialised tissue, present on either side of the embryo sac, is called the nucellus.
BETA
