Description of embryonic sac
Give a brief description of the term embryonic sac? Which are the cells that form embryonic sac? And also write down their ploidies?
Expert
The embryonic sac is female gametophyte of the angiosperms. The embryonic sac is composed of three cells which remain next to micropyle, two lateral synergids and central oosphere (egg); one binucleated cell, polar nuclei, is placed in central region; three antipodal cells stay in opposite side to micropyle.
Because all of these cells come by the mitosis from functional megaspore they are haploid.
Explain cell movements? How are such movements made?
What do you meant by cellular secretion?
Cell Biology: This is the branch of biology that deals with the study of morphological, organizational, physiological, biochemical, genetical, developmental pathological and evolutionary aspects of cell and its components. Cell biology is a scientific
What GMO stands for and what significance it has in bio-technology field?
What do you mean by the term sound and sound perception? Briefly describe both the terms.
Normal 0 false false
Name the chemical substances which compose the plasma membrane?
Describe the term goiter? Also explain endemic goiter? How this problem is socially resolved?
Define the term Operational Forecasting and what are the forecasting methods?
Explain how environment and human health are related and what is GIS?
18,76,764
1940662 Asked
3,689
Active Tutors
1434552
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!