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NEET Questions / Botany / Sexual Reproduction in Flowering Plants
In some plants, the integuments develop into a hard seed coat. What is the primary function of this hardened structure?
Nutrient storage for the embryo
Facilitation of seed dispersal
Promotion of germination
Protection of the embryo
Identify the INCORRECT statement regarding adventive embryony:
It involves the development of embryos from the nucellus or integuments.
It is a type of sporophytic apomixis.
The embryos are genetically identical to the parent plant.
It leads to the formation of multiple embryos within a seed.
In adventive embryony, embryos develop from:
Haploid egg cell
Diploid zygote
Diploid cells of the nucellus or integuments
Synergids or antipodal cells
In a type of apomixes known as adventive embryony, embryos develop directly from the
Nucellus or integuments
Synergids or antipodals in an embryo sac
Accessory embryo sacs in the ovule
Zygote
Which one of the following was observed for the first time by Trenb?
Entry of the pollen tube into the ovule through the micropyle in ottetia
Entry of the pollen tube into the ovule through the chalaza in casuarina
Entry of the pollen tube into the ovule through the integuments
Formation of many pollen tube into the ovule through the grain in hibiscus
Testa of a seed is formed from
both outer and inner integuments
inner integument
outer integument
outer integument and funicle
Testa of a seed is formed from
both outer and inner integuments
inner integument
outer integument
outer integument and funicle
In Loranthus, the ovule is enclosed by
2 integuments
1 integument
No integuments
3 integuments
In Loranthus, the ovule is enclosed by
2 integuments
1 integument
No integuments
3 integuments
