The points regarding the structure of the mature embryo sac that have proved of special signification in taxonomic considerations include
A. The structure and shape of the embryo sac
B. The number of nuclei and their distribution in embryo sac
C. Persistence or disappearance of the synergids and antipodals in the embryo sac after or before fertilization
D. All of the above
Answer: Option D
Related Questions on Plant Anatomy and Physiology
A. Cinnamomum - Amoora association
B. Bischofia - Dillenia association
C. Shorea - Lagerstroemia association
D. Mesua - Michelia association
Which of the following react with haemoglobin, forming methemoglobin which will not take up oxygen?
A. Nitrates
B. Nitrites
C. Carbides
D. Oxides
Internally, hydathode shows a group of loosely arranged parenchymatous cells called as
A. Epiderm
B. Epithelium
C. Ampithecium
D. Epithem

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