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!
Cytosketal Mechanism
There are two co-ordinate processes in the cleavage (or cell division) that is displayed in Figure.
Karyokinesis
The mitotic division of nucleus depends on the creation of mitotic spindle that is constituted by microtubules of which the tubulin protein is the structural unit Treatment of the egg along with the drug colchicines disrupts the microtubules and arrests Karyokinesis at metaphase.
Figure: Role of microtubules and microfilaments in cell divisions
Cytokinesis
Division of the cell depends on the contractile microfilaments of which protein actin is the structural unit. A ring of microfilament emerges in the cortex around the cell in which the cleavage furrow is formed. Contraction of the microfilament ring in the purse-string manner deepens the furrow finally cutting the cell into two. Treatment of the egg along with cytochalasin B inhibits the organisation of contractile ring of microfilaments that is why cleavage furrow is not made and cytokinesis does not take place.
Q. Morphology in relation to taxonomy? Morphology is the basic tool of taxonomy, because identification is primarily based on the characters of the plant. The morphological cha
Explain HIV/AIDS HIV/AIDS is another example of chronic infections. Its existence was discovered recently in 1981. The spread of HIV infection is widespread and can pro
Specify the term in detail - Swim bladder. Found in bony fish, this gas-filled chamber is used to main neutral buoyancy. Oxygen in blood is added or removed as required. Swim b
Q. Do you know how ketoacidosis develops? The chain of reaction begins with insufficient insulin to meet the needs of the body. Several factors then work together. These inclu
Properties of Cardiac Cells Automatically: ability of the heart to initiate impulses regularly and spontaneously. Excitability: ability of cardiac cells to respond to
Q. Habitat for the worlds species? Natural ecosystems provide habitat for the world's species. Forests, coral reefs and deep ocean bottoms house many species. Wetlands, through
Currents in Estuaries Currents in estuaries are caused primarily by tidal action and river flow. Currents are generally confined to channels but velocities up to several knots
Food borne intoxications are basically food borne illness caused due to ingestion of toxin produced my microorganisms (mycotoxins, bacterial toxins). Natural toxins present in food
What is the parasite that causes toxoplasmosis? How is the disease transmitted and what are its typical manifestations? Toxoplasmosis is caused by the protozoan Toxoplasma gond
What is a genetic family tree? Genetic family tree is a schematic family tree that shows the biological inheritance of some trait by successive generations. Genetic family t
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: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd