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Syngamy and Triple Fusion
After traversing through the stylar region, the ultimate destination of the pollen tube is to reach the female gametophyte and release the male gametes that can ensure fertilization. In angiosperms, double fertilization is an important feature which involves fusion of one male gamete with the egg (syngamy) to from the zygote, the progenitor of next generation and the other male gamete fuses with the fusion product of the polar nuclei (secondary nucleus),resulting in triple fusion (haploid male gamete + two haploid polar nuclei = 3n), the primary endosperm nucleus.
Coccidioidomycosis Coccidioidomycosis is a soil-borne infection of pet, domestic, wild animals and man. The disease is caused by Coccidioides immitis, a dimorphic fungus wh
How different are the respiration in fishes and the respiration in adult amphibians? In fishes gas exchange is completed by direct contact of water with the branchiae (gills).
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Determine Requirement of Trace elements for Infant? Most elements, such as zinc and iodine, hold a major significance in infant nutrition. Zinc is associated with growth while
Metamerism oe Segmentation In the early coelomates the coelom was not divided into segments, the whole body cavity was a single space. Hence body movements were not precise.
how these can be called as acellular?
what the advantage of yersinia pestis
Explain the eligibility of Cardiac rehabilitation ? Cardiac rehabilitation services are prescribed for patients who: 1) Have had a myocardial infarction. 2) Have had coronary b
prototherians are unfinished mammals
Explain the Fluoride Toxicity? Fluoride is a cumulative toxin. Ingestion of fluoride 1.0-1.5 mg/L for several years may produce dental fluorosis, i.e. browning and pitting of t
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