Which of the following plant structures exemplifies two generations embedded within each other?
Pollen grains inside the anther
Germinated pollen grain with two male gametes
Seed inside the fruit
Embryo sac inside the ovule
Related Questions
Cells present in completely developed male gametophyte of flowering plants are.
2
5
3
4
The pollen grains of which plant families exhibit prolonged viability, often remaining viable for months after release?
Rosaceae and Liliaceae
Poaceae and Solanaceae
Leguminosae and Fabaceae
Asteraceae and Brassicaceae
Cleistogamy ensures seed set formation. This is an advantage but still there are disadvantages too. One of the disadvantage is
It brings genetic variations
Pollinators are not required
Genetic variations are limited in progeny
Flowers remain fragrant throughout the life
A typical angiosperm anther is
Bilobed
Dithecous
Both (1) and (2)
Monothecous
Which one of the following statements is not true?
Pollen grains are released from anthers at 2-celled stage
Sporogenous cell directly behaves as the megaspore mother cell
Megaspore divides twice to form an eight nucleate embryo sac
Egg and synergids always lie near the micropylar end of ovule
Grass family (Poaceae) contains
Exposed stigma
Versatile anther
Both (a) and (b)
Large pollens
The Yucca plant relies on a specific species of moth for pollination. What type of symbiotic relationship is exemplified by this interaction, considering that the moth larvae also depend on the Yucca plant for food?
Commensalism
Parasitism
Obligate Mutualism
Predation
The process of formation of microspores from a pollen mother cell through meiosis is called:
Megasporogenesis
Microsporogenesis
Sporulation
Fertilization
Emasculation is not required in
Unisexual flower
Bisexual flower
Dioecious flower
Both (1) and (3)
The process of double fertilization in angiosperms involves the fusion of one male gamete with the egg cell and the other with the:
Synergids
Antipodals
Central cell
Integuments
