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DIVISION PHASE OR MITOSIS (M- PHASE)
Cell division was first observed by Naegeli 1842 in plant cells ,but thoroughly described by Eduard strasburger 1875. Fleming 1879 described . it in animals cells. The term mitosis was given to it by Fleming 1880. Since the most vital significance of mitosis is a precise duplication of genetic material and the latter resides in the nucleus it is advisable to divide the whole process into nuclear division (= Karyokinesis) and cytoplasmic division. Sequentially all changes undergone by a cell during mitosis are divisible in four main phases , viz prophase, metaphase, anaphase and telophase .
Cages for keeping animals in the science room It is frequently desirable in elementary and general science to stay animals caged in the science room for short periods of observ
Treatment of diarrhea Loperamide (Imodium, and others), an over-the-counter synthetic opioid (4-mg loading dose, then 2 mg orally after each loose stool to a maximum of 16 mg/d
The condition in which there is a DECREASE in the number of white blood cells in humans is termed as: a) Leukocytosis (pron: lew-kO-sigh-toe-sis) b) Leukopenia (pron: lew-kO
What is the structural difference between plasmalogen and other glycerophospholipids? What physiological advantage arises from this structural difference?
Q. What are the protective structures of the central nervous system present in vertebrates? In vertebrates the brain and the spinal cord are protected by membranes, the meninge
Determine about the Accommodation of eye Accommodation is the ability of the overall refracting power of the eye to change to clearly view objects at different distances. This
What is Polysaccharides? Polysaccharides: Many monosaccharide subunits can be joined to form long, complex polysaccharide molecules. These complex sugars are often used to s
Dinoflagellates are single-celled to colonial protistans characterized by the two flagella, one girdling cell and the other trailing the cell. Some of the dinoflagellates exist in
what is the warmest and coldest parts of the boy
Disorders associated with copulation and ejaculation Lack of libido refers to too long “reaction time” to complete absence of sexual desire for females in standing heat. The i
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