In a flowering plant archesporium gives rise to
only the wall of the sporangium
both wall and the sporogenous cells
wall and the tapetum
only tapetum and sporogenous cells
Additional Questions
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What is the ratio of equational divisions that take place in Cycas and angiosperms respectively leading to the formation of male gametes from pollen grains? |
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Helobial type of endosperm is seen in |
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Asexual reproduction differs from sexual reproduction as |
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Insect pollinated flowers are characterized by |
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8-nucleate embryosacs are |
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A bisexual flower which never opens up in its life span is known as |
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A hyaline, bisexual and self-fertilized flower that does not open at all, is |
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A polygonum type of embryo sac is |
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Hypanthodium refers to a special type of |
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After fertilization synergids and antipodal cells form____. |
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