Gametogenesis, Biology

Assignment Help:

The process of meiosis in animals is called gametogenesis .It takes place in the testis in male and ovary in female.

Gametogenesis is divided into spermatogenesis (formation of male gametes -sperms) and Oogenesis (formation female gametes -ova).The result is the formation of four gametes each containing half the number of chromosomes.

During the first Meiosis division in human beings the 46 chromosomes in each cell arrange themselves in 23 pairs. The chromatids each pair move apart and migrate to the opposite poles of the germ cell. This is followed by the division of the cytoplasm.

The first Meiosis division is characterized by DNA replication which forms a primary gametocyte of 46 duplicated chromosomes. This is followed by pairing of each of the two homologous chromosomes of the 46 duplicated chromosomes.


Related Discussions:- Gametogenesis

Fluids requirement during congestive cardiac failure, Q. Fluids requirement...

Q. Fluids requirement during congestive cardiac failure? Fluids: Fluid intake should be monitored in accordance with urine output and severity of oedema. Fluid restriction is

How many layers in retina, How many Layers in retina The retina is comp...

How many Layers in retina The retina is composed of  ten  layers: a:)  Pigmented epithelium (outermost layer), b)  Neusoepithelium, rods and cones  (photoreceptors), c

#aschelminthes, #General characters of Aschelminthes

#General characters of Aschelminthes

Functional regions of digestive system, Functional regions of digestive sys...

Functional regions of digestive system In general the digestive system of metazoans is divided into 4 major functional regions of: Reception Conduction and s

Define carbohydrate requirements for physical fitness, Define Carbohydrate ...

Define Carbohydrate Requirements for Physical Fitness? Carbohydrate is the primary fuel for high intensity exercise, Increased intake of carbohydrate on a consistent basis enab

What do the major organs of the digestive system do, What do the major orga...

What do the major organs of the digestive system do? They are salivary glands, teeth, tongue, gums, esophagus, stomach, small intestine, large intestine, pancreas, liver, and g

Explain the taxonomy of lamarck, Explain the taxonomy of Lamarck? Lamar...

Explain the taxonomy of Lamarck? Lamarck's taxonomy was mainly static in nature and his classification does not show its true value to the development of modern taxonomy. His m

Explain vitamin a deficiency - micronutrient deficiencies, Explain Vitamin ...

Explain Vitamin A Deficiency - Micronutrient Deficiencies? Vitamin A deficiency (VAD) is a major public health problem, and the most vulnerable are preschool children and pregn

Malaria, what are the etiological agents of malaria

what are the etiological agents of malaria

How many grams of sodium dodecyl sulfate, How many grams of sodium dodecyl ...

How many grams of sodium dodecyl sulfate (mw = 288.37) would you dissolve in 80 mLs of water to make a 20% solution of SDS?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd