What is the common between vegetative reproduction and apomixis?
Options
(a) Both are applicable to only dicot plants. (b) Both bypass the flowering phase (c) Both occur round the year (d) Both produces […]
A drupe develops in
Options
(a) mango (b) wheat (c) pea (d) tomato
Correct Answer:
mango
Explanation:
Some fleshy fryits such as mango, plum etc. usually ave a single hard stone that […]
Meiosis takes place in:
Options
(a) Conidia (b) Gemmule (c) Megaspore (d) Meiocyte
Correct Answer:
Meiocyte
Explanation:
Meiosis takes place in meiocyte while Coonidia and Gemmule are asexual structures and megaspore is haploid.
Advantage of cleistogamy is:
Options
(a) More vigorous offspring (b) No dependence of pollinators (c) Vivipary (d) Higher viability of seeds
Correct Answer:
No dependence of pollinators
Explanation:
Cleistogamy favour sno dependence on […]
Wind pollination is common in
Options
(a) legumes (b) lilies (c) grasses (d) orchids
Correct Answer:
grasses
Explanation:
Wind pollination is common in grasses. Grasses produce large amount of pollen which by the […]
Unisexuality of flowers prevents
Options
(a) autogamy, but not geitonogamy (b) both geitonogamy and xenogamy (c) geitonogamy, but not xenogamy (d) autogamy and geitonogamy
Correct Answer:
autogamy, but not geitonogamy
Explanation:
Unisexuality of […]
The “Eyes” of the potato tuber are
Options
(a) root buds (b) flower buds (c) shoot buds (d) axillary buds
Correct Answer:
axillary buds
Explanation:
The axillary buds of the potato tuber are […]
Megasporangium is equivalent to:
Options
(a) Fruit (b) Nucellus (c) Ovule (d) Embryo sac
Correct Answer:
Ovule
Explanation:
Ovule is also called integumented magasporangiu, It developes into seed after fertlization in spermatophytes. It […]
What is the function of germ pore?
Options
(a) Emergence of radicle (b) Absorption of water for seed germination (c) Initiation of pollen tube (d) Release of male gametes
Correct Answer:
Initiation of pollen […]
The viability of seeds is tested by
Options
(a) Safranine (b) 2, 6 dichlorophenol indophenols (c) 2, 3, 5 triphenyl tetrazolium chloride (d) DMSO
Correct Answer:
2, 3, 5 triphenyl tetrazolium chloride
Explanation: […]
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