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Oogenesis
Oogenesis is the formation of ovum from oogonial cells that are formed in the ovary from primordial germ cells. And as in spermatogenesis it involves meiosis to produce haploid ovum. You have learnt in the section on spermatogenesis that the differentiation of sperm occurs after the meiotic events. In oogenesis the process of first meiotic division is very prolonged; and it is during this process that growth and differentiation of oocyte take place. In many animals most events related to oocyte differentiation occur during prophase I of first meiotic division. In animals which produce yolk-laden eggs, this phase is divided into
Q. During mitotic anaphase is there separation of identical chromatids or separation of homologous chromosomes? In the anaphase of mitosis the identical chromatids complete and
Q. Non-Modifiable Risk Factors for coronaru heart diseases? Non-Modifiable Risk Factors 1. Age 2. Sex 3. Heredity 4. Endomorphic Body Build Family history: Pe
What is Lymphatic System in human biology? The lymphatic system maintains fluid balance and serves in protecting the body from disease. The primary organs of the lymphatic syst
Cohesiveness and Surface Tension Water flows freely, yet water molecules do not break apart. They cling together particularly to polar surfaces. Therefore, water can fill a tub
Define Most Probable Number (MPN) Method? The MPN method is like agar shake tube method where no agar is used. The dilutions of the microbial suspension are made in liquid medi
POLYMORPHISM IN COLENTRATAtion..
Situation in which a closed loop negative feedback system is converted to an open loop system? A. A disease that destroys all the adenylyl cyclase and all the cAMP in the
Listeriosis Listeriosis is an important food-borne zoonosis caused by pathogenic species of Listeria. The disease affects both in man and animals. It is a serious invasive dise
Large Quantity of energy is released during an earthquake with a combination of radiated elastic strain seismic waves frictional, heating of the fault surface and cracking of the r
Hello, I did a experiment: I used 5 salt solutions (0 g/L; 5 g/L; 10 g/L; 15 g/L; 20 g/L), and in each one I cooked beans (25 g) for 5 minutes. At the end, I measured the absorpti
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