Multiple fission - types of asexual reproduction, Biology

Multiple Fission - Types of Asexual Reproduction

Multiple fission is a variation of fission where the parent divides mitotically into a number of smaller units that are the daughter individuals simultaneously. The nucleus in this case divides very fast, repeatedly. Subsequently the cytoplasm surrounding each daughter nucleus starts to form separate units leading to formation of small uninucleate, masses. These units become independent. This method of reproduction is as well known as schizogony and it occurs typically in Sporozoa and some Sarcodina. Schizogony is also termed as sporogony if it is associated with production of sporozoites after formation of zygote. A very good instance of multiple fission is seen in Plasmodium where sporozoites are introduced by the mosquito in the human host and where they enter the liver to go through several schizogonous cycles (pre-erythrocytic schizogony). The merozoites liberated from liver enter erythrocytes to go through another cycle of schizogony in which the schizont inside the human RBC undergoes multiple fission to generate merozoites. Can you visualise here that the parasite is exploiting the food resource to very rapidly multiply its numbers? That is one very significant benefits of asexual reproduction.

In addition to the dissimilar types of fissions described above, a modified type of fission in the form of budding takes place in suctorians. The adults bud off one or more smaller daughter cells. When buds are given off from the outer surface, it is termed as external budding. When budding takes place inside a chamber, buds arising from the wall of the chamber it is called internal budding. The buds, while released, possess ciliated bands and they swim around. But they soon attach to the substratum and become adults.

Posted Date: 2/5/2013 12:09:33 AM | Location : United States







Related Discussions:- Multiple fission - types of asexual reproduction, Assignment Help, Ask Question on Multiple fission - types of asexual reproduction, Get Answer, Expert's Help, Multiple fission - types of asexual reproduction Discussions

Write discussion on Multiple fission - types of asexual reproduction
Your posts are moderated
Related Questions
Amantadine Treatment with oral amantadine or rimantadine begun within 48 hours after the onset of illness decreases the duration of fever and symptoms by about 1 day. Whether t

If the condition or the post disease as a result of intraradicular infection----> treated conventionally via apex " non-surgical ", ---->Here we have 2 options either coronal


What is Choanoflagellate? Explain in brief. The protozoans which resemble the choanocyte cells found in sponges. They have a collar of microvilli which surround a central flage

a) Which region of the retina gives the most accurate interpretation of the image? b) What type of light-sensitive cell is present in this region?   (a) The fove

Why do plants need to exchange gases with the environment? Plants require to do gas exchange because they create aerobic cellular respiration (like animals) and they need to ge

What is Active Transport--Secretion This method is now a well accepted process of aqueous formation. The rate of aqueous humour formation depends on the rate of active solute

newer trends of animal taxonomy

#question.characteristics of coelenterata?.

Formation of female gametes: Ovule develops from a cushion like part of the ovary called the PLACENTA. Ovule is connected to the placenta by a stalk known as FUNICLE. The