Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.
Enzymes and recombinant DNA technology Recombinant DNA technology, also called as genetic engineering makes use of a variety of enzymes, particularly restriction endonucleases
Given that most AIDS victims die from overwhelming infections or rare types of cancer, what body system do you think HIV (the AIDS virus) impairs?
The most recent blood work of a patient with a diagnosis of acute myelogenous leukemia (AML) reveals thrombocytopenia. Where is the patient most likely to experience abnormal bleed
Q. In sickle cell anemia, a hereditary disease, there is replacement of one amino acid by another in one of the four polypeptide chains of hemoglobin. In this case are all of the s
Interferons are small glycoproteins formed by virus-infected cells that inhibit viral infection. They are heterogeneous. Gamma interferons induce MHC class II antigens in macrophag
How did the first fermenting autotrophs appeared? What about the first aerobic beings? A heterotrophic hypothesis asserts that the first living beings were the fermenting heter
What are the extraembryonic membranes present in vertebrates? The extraembryonic membranes that might be present in vertebrates are the yolk sac, the amnion, the chorion, the
Question 1: Differentiate between Traditional, complementary and alternative medicines. Cite examples for each type. Definition of Traditional, alternative medicines and
Define Placental secretion of oestrogens During pregnancy? Placental secretion of oestrogens increase with progression of pregnancy. Oestrogens perform many functions. They sti
Explain Transport proteins in plasma Transport proteins, embedded in lipid membranes, facilitate the import of nutrients into cells or the release of toxic products into the
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd