Seed coat is not thin, mebranous in:
Options
(a) Coconut (b) Groundnut (c) Gram (d) maize
Correct Answer:
Coconut
Explanation:
The seed coat develops from integuments originally surrounding the ovule. It is thick […]
Perisperm differs from endosperm in:
Options
(a) having no reserve food (b) being a diploid tissue (c) its formatting by fusion of secondary nucleus with several spersms (d) being a haploid tissue
Correct […]
Apomictic embryos in citrus arise from
Options
(a) Synergids (b) Maternal sporophytic tissue in ovule (c) Antipodal cells (d) Diploid egg
Correct Answer:
Maternal sporophytic tissue in ovule
Explanation:
Apomixis is an asexual […]
Vegetative propagation in mint occurs by:
Options
(a) Offset (b) rhizome (c) sucker (d) runner
Correct Answer:
sucker
Explanation:
Vegetative propagation in mnt occurs through sucker. Vegetative reproduction is a type of asexula […]
Animal vectors are required for pollination in
Options
(a) Maize (b) Vallisneria (c) Mulberry (d) Cucumber
Correct Answer:
Cucumber
Explanation:
There are different types of vectors involved in pollination. For example, Maize, mulberry […]
Nucellar polyembryony is reported in species of
Options
(a) Citrus (b) Gossypium (c) Triticum (d) Brassica
Correct Answer:
Citrus
Explanation:
Polyembryony is a type of seed formation in which the nucellar cells that are […]
Both, autogamy and geitonogamy are prevented in
Options
(a) papaya (b) Cucumber (c) Castor (d) maize
Correct Answer:
papaya
Explanation:
Papaya is dioecious i.e., male and female flowers occurs in separate plants so […]
Filiform apparatus is a characteristic feature of
Options
(a) suspensor (b) egg (c) synergid (d) zygote
Correct Answer:
synergid
Explanation:
A synergid cell wall forms a highly thickened structure called the filiform apparatus […]
Product of sexual reproduction generally genetates:
Options
(a) prologned dormancy (b) new genetic combination leading to variation (c) Large biomass (d) Longer viability of seeds
Correct Answer:
new genetic combination leading to variation
Albuminous seeds store their reserve food mainly in
Options
(a) Perisperm (b) Endosperm (c) Cotyledons (d) Hypocotyl
Correct Answer:
Endosperm
Explanation:
Endosperm is the nutritive tissue which provides nourishment to the embryo in […]
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