A researcher observes a plant species where the generative cell undergoes mitosis before pollination, resulting in two sperm cells within the pollen grain. How might this unusual characteristic affect double fertilization?
Prevent double fertilization from occurring.
Enhance the efficiency of double fertilization.
Potentially lead to the fertilization of both the egg cell and a synergid, disrupting endosperm development.
Have no significant impact on the process of double fertilization.
Related Questions
In angiosperms, what is the technical equivalent of the ovule?
Megasporangium surrounded by integuments
Megaspore mother cell
Microspore mother cell
Microspore surrounded by a callose wall
Which structure develops from the functional megaspore in a flowering plant?
Male gametophyte
Endosperm
Seed coat
Female gametophyte
The typical structure of a mature angiosperm embryo sac does NOT include which of the following?
8 cells, 7 nuclei
7 cells, 8 nuclei
3 antipodal cells
2 synergids
Which structure in gymnosperms is analogous to the angiosperm ovule?
Archegonium
Megasporangium surrounded by integuments
Microspore
Pollen grain
Which of the following correctly describes the cellular organization of a mature embryo sac in a typical angiosperm?
8 cells, 7 nuclei
7 cells, 8 nuclei
8 cells, 8 nuclei
7 cells, 7 nuclei
In which of the following families do pollen grains retain viability for several months after release?
Poaceae, Solanaceae
Rosaceae, Liliaceae
Leguminosae, Fabaceae
Asteraceae, Brassicaceae
Date palms are dioecious. This characteristic ensures that date palms cannot undergo:
Autogamy
Cross-pollination
Wind pollination
Insect pollination
A dioecious flowering plant prevents which of the following?
Autogamy and xenogamy
Geitonogamy and xenogamy
Autogamy and geitonogamy
Cleistogamy and xenogamy
If a plant species exhibits dioecy, which of the following is NOT a possible mode of pollination?
Autogamy
Anemophily
Entomophily
Hydrophily
Which of the following pairs of plant families is known for pollen viability extending for several months post-release, impacting breeding strategies?
Rosaceae and Liliaceae
Leguminosae and Fabaceae
Poaceae and Solanaceae
Asteraceae and Brassicaceae
