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Q. How is female gametophyte formed in angiosperms?
Into the flower ovary there are megasporangia enclosed by a tegument having a small opening, the micropyle. Inside the megasporangium there is a megasporocyte, or megaspore mother cell, that undergoes meiosis forming four megaspores of which three regress and only one is functional. The useful megaspore undergoes (three) mitosis generating eight cells that as a whole form the embryonic sac.
Explain the Primary and Secondary air Pollutants a. Primary pollutants -emitted directly Particulate matter ( Sulfur dioxide (SO 2 ) Nitrogen dioxide (NO 2 )
From the zygote, pluricellular organisms are produced by serial mitosis. Would this formation be possible if every cell made by mitosis had an identical life in relation to its ant
Topology and Cell Organ Shapes Topology is an abstract mathematical exercise that deals with the possible shapes and surfaces of an endlessly/infinitely elastic body. Most cel
In general, which of the following best relates the severity and frequency of natural events, such as storms or droughts? A) Nothing is known about this relationship. B) The severi
Define Procedure for Detection of Chalk in Flour Carry out the experiment following the procedure given herewith: 1. Take a teaspoon of flour in a test tube and shake it wit
Define about the Metabolism of Selenium compounds? Selenium compounds' are generally very efficiently absorbed by humans and selenium absorption does not appear to be' under ho
Define the LTLT Pasteurization Method? In LTLT pasteurization, the pasteurization time is in the order of minutes and related to the temperature used; two typical temperature/t
1. The genes for ruby eyes (rb), tan body (t) and cut wings (ct) are all found on the X-chromosome of Drosophila melanogaster. All of these are recessive traits. They map in the or
Illustrate about the metabolic waste products in the cornea? Metabolic Waste Products During the metabolism various waste products including lactic acid, protein an
SPECIE S CONCEPT - According to Davis and Heywood species define as assemblage of individuals with morphological features in common and separable from other such assembla
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