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Functions of Synergids
Ultra structurally the structure and concentration of cell organelles reveals that synergids are metabolically active. The following Wee functions are attributed to synergids.
1. Directing of pollen tube growth by secreting some chemotropically active substances.
2. The degenerating synergids form the site for pollen tube discharge in the embryo sac.
3. The filiform apparatus may aid in the absorption and transportation of materials into the embryo sac from the nucellus.
defination of phyletic lineage?
Is transpiration the only way through which leaves lose water? Plants do not only lose water as vapor, as by transpiration. The leaves also lose liquid water by a phenomenon c
types of enzyme
Which of the following sugars does NOT contains an O-glycosidic bond? Select one: a. amilose b. amylopectin c. glycogen d. cellulose
This is a broadly used screening technique that find several genomic mutations in wide number of samples, this technique finds sequence variations because of point mutations or oth
What is a recessive gene? With the birth of a child, it gets its genes from both parents. Some genes 'override' other genes. Using hair color as instance: If single parent i
Control of Pollution We have seen that pollution affects human health, 'vegetation, crop yield, trees, fisheries, forests, buildings, archaeological monuments, tourism. These
The main arena of various types of activities of a cell is: 1. Plasma membrane 2. Mitochondrian 3. cytoplasm 4. Nucleus Cytoplasm
Planning the Nursing Care Monitor fluid intake and urinary output Administer drugs as advised/prescribed Monitor the child on dialysis Provide therapeutic diet
Pulmonary Autograft and Ross Procedure : Sir Donald Ross in 1967 introduced the concept of using patient's own pulmonary valve (autograft) for aortic valve replacement and a pul
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