The junction between ovule and funicle is:
[Sexual-Reproduction-in-Flowering-Plants] [class-xii]
Correct Option: C
Answer: Hilum
Explanation: Hilum represents the junction between ovule and funicle.
The protective envelopes of the ovule are:
[Sexual-Reproduction-in-Flowering-Plants] [class-xii]
Correct Option: B
Answer: Integuments
Explanation: Each ovule has one or two protective envelopes called integuments.
The basal part of the ovule is:
[Sexual-Reproduction-in-Flowering-Plants] [class-xii]
Correct Option: C
Answer: Chalaza
Explanation: Opposite the micropylar end, is the chalaza, representing the basal part of the ovule.
Embryo sac is also known as:
[Sexual-Reproduction-in-Flowering-Plants] [class-xii]
Correct Option: B
Answer: Female gametophyte
Explanation: Embryo sac or female gametophyte.
Functional megaspore develops into:
[Sexual-Reproduction-in-Flowering-Plants] [class-xii]
Correct Option: A
Answer: Embryo sac
Explanation: Only the functional megaspore develops into the female gametophyte (embryo sac).
A typical angiosperm embryo sac at maturity is:
[Sexual-Reproduction-in-Flowering-Plants] [class-xii]
Correct Option: B
Answer: 8-nucleate, 7-celled
Explanation: A typical angiosperm embryo sac, at maturity, though 8-nucleate is 7-celled.
Pollination within the same flower is:
[Sexual-Reproduction-in-Flowering-Plants] [class-xii]
Correct Option: C
Answer: Autogamy
Explanation: Pollination is achieved within the same flower... is called autogamy.
Viola (common pansy) produces which type of flowers?
[Sexual-Reproduction-in-Flowering-Plants] [class-xii]
Correct Option: C
Answer: Both Chasmogamous and Cleistogamous
Explanation: Viola (common pansy)... produce two types of flowers – chasmogamous... and cleistogamous.
Continued self-pollination leads to:
[Sexual-Reproduction-in-Flowering-Plants] [class-xii]
Correct Option: B
Answer: Inbreeding depression
Explanation: Continued self-pollination result in inbreeding depression.
Transfer of pollen from anther to stigma of another flower of same plant is:
[Sexual-Reproduction-in-Flowering-Plants] [class-xii]
Correct Option: C
Answer: Geitonogamy
Explanation: Transfer of pollen grains from the anther to the stigma of another flower of the same plant... Geitonogamy.