If pollen of a flower falls on the stigma of another flower, belonging to the same plant, it is called
Options
(a) geitonogamy (b) herkogamy (c) cleistogamy (d) autogamy
Correct Answer:
geitonogamy
Explanation: […]
If the cell of root in wheat plant have 42 chromosomes then the number of chromosome in the cells of pollen grain
Options
(a) 14 (b) 28 (c) 21 (d) 42
Correct Answer: […]
If there are 4 cells in anthers, what will the number of pollen grains?
Options
(a) 4 (b) 12 (c) 8 (d) 16
Correct Answer:
16
Explanation:
In anthers, meiosis occurs and each […]
In a monoecious plant
Options
(a) male and female sex organs are on different individuals (b) male and female gametes are of two morphologically distinct types (c) male and female sex organs are […]
In a population of species, in some plants the style is shorter. But in some others, it is longer than the stamens. This condition is called
Options
(a) heterostyly (b) homogamy (c) homostyly […]
In angiosperms each microspore mother cell undergoing meiosis gives rise to a
Options
(a) diad (b) triad (c) tetrad (d) four diploid cells
Correct Answer:
tetrad
Explanation:
No explanation available. Be the first […]
In angiosperms, the endosperm is
Options
(a) polyploid (b) triploid (c) diploid (d) haploid
Correct Answer:
triploid
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
In diplospory, embryo developed from diploid
Options
(a) nucleus (b) reproductive cell (c) microspore mother cell (d) megaspore mother cell
Correct Answer:
megaspore mother cell
Explanation:
No explanation available. Be the first to […]
In flowering plants, a mature male gametophyte is derived from a pollen mother cell by
Options
(a) two mitotic divisions (b) one meiotic and two mitotic divisions (c) three mitotic divisions (d) a […]
In some plants anthers and stamen grow and mature at same time. This phenomenon is called
Options
(a) homogamy (b) syngamy (c) allogamy (d) fusion
Correct Answer:
homogamy
Explanation:
No explanation available. Be […]
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