Hindi, asked by mohittati381, 5 hours ago

एक परिपक्व परागकण की रचना का नामांकित आरेख बनाकर निम्न भागों का एक
अथवा
प्रमुख कार्य लिखिए :
OR
(अ) बाह्यचोल
(ब) जननछिद्र
26
(स) जननकोशिका
Draw a labelled sketch of a mature pollen grain and write one main
function of the following:
(a)
Exine
(b)
Germ pore
Generative cell
सह-प्रभाविता क्या है ? उदाहरण को चेकर बोर्ड द्वारा समझाइए कि पीढ़ी में कितने
प्रकार के लक्षण प्रारूप व जीन प्रारूप बनेंगे।
What is co-dominance? How many types of phenotype and genotyp​

Answers

Answered by meenu3890
0

Answer:

Germ pore is the place on pollen grains exine, where the sporopollen is absent. It helps in formation of pollen tube by intine.

A cell of the male gametophyte (pollen grain) of seed plants that divides to give rise directly or indirectly to sperm. See more at pollination.

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