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Maturation Phase
The Maturation phase characterizes he transformation of diploid primary spermatocytes into haploid spermatids. The primary spermatocyte divides meiotically to produce two secondary spermatocytes each with a haploid nucleus. Each of the secondary spermatocytes undergoes second meiotic division to produce two haploid spermatids. Each spermatid undergoes an intracellular differentiation to produce spermatozoa. The process of intracellular differentiation of a spermatid into spermatozoa is known as spermiogenesis. We shall now describe the spermiogenesis process in detail.
Figure: Section of seminiferous tubules in a human testis showing different stages of spermatogenesis
Consequences of Aging It is hard to enumerate the general consequences of aging in different animals. Gradual loss of reproductive ability, neuromuscular coordination and not
Freshwater Animals In Figure you have seen that the body fluids of freshwater animals are hyperosmotic to their aqueous surroundings. This results in two-kinds of osmotic prob
Why Body composition assessment is done in sports and exercise? Body composition assessment is generally done in sports and exercise for the following reasons: 1) It can ser
Protozoa general characters and classification
A n a e r o b i c lagoon system This specific system of liquid manure handling is restricted to organized dairy farms, where the flushed manure is directed into an anae
Q. Why is the endocrine system considered one of the integrative systems of the body? What is the other physiological system that also has this function? The endocrine system i
How different are the endosperm of gymnosperms and the endosperm of angiosperms? In gymnosperms the endosperm is haploid (n), it is known as primary endosperm. In angiosperm th
Q. What is the significance of water for enzymatic activity? Enzymes, Biological catalysts, depend on water to reach their substrates and bind to them. There is no enzymatic ac
Q. What is Glucose Tolerance Test? Glucose Tolerance Test (GTT) is used for diagnosis of diabetes mellitus. In this test, blood sugar levels are measured after giving glucose
Locomotory apparatus in protozoa
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