Class 12BiologySexual Reproduction in Flowering PlantsThe Pistil, Megasporangium (ovule) and Embryo sac
MediumIn a haplontic life cycle,how many of the four haploid nuclei degenerate?
- AOne
- BTwo
- CThree
- DFour
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The stalk with which ovules are attached to the placenta is called:
Medium
View SolutionIf a tetraploid plant contains $48$ chromosomes in its nucellus,then what is the number of chromosomes in the egg cell and in a synergid,respectively?
Match the columns $I$ and $II$ and choose the correct combinations.
Column-$I$ Column-$II$ $(a)$ Funicle $(i)$ Small opening of ovule $(b)$ Integuments $(ii)$ Stalk of ovule $(c)$ Chalaza $(iii)$ Protective envelopes of ovule $(d)$ Hilum $(iv)$ Junction part of ovule and stalk $(e)$ Micropyle $(v)$ Base of ovule
| Column-$I$ | Column-$II$ |
|---|---|
| $(a)$ Funicle | $(i)$ Small opening of ovule |
| $(b)$ Integuments | $(ii)$ Stalk of ovule |
| $(c)$ Chalaza | $(iii)$ Protective envelopes of ovule |
| $(d)$ Hilum | $(iv)$ Junction part of ovule and stalk |
| $(e)$ Micropyle | $(v)$ Base of ovule |
Medium
View SolutionSelect the correct statement.
Medium
View SolutionWhich of the following parts belong to the gynoecium? $P$ - Stigma,$Q$ - Anther,$R$ - Style,$S$ - Ovary,$T$ - Connective,$U$ - Filament
Medium
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