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.
Ink prints of leaves Place a small quantity of printer's ink on a sheet of glass or a tile. Roll the ink into a thin yet layer with a rubber roller. Place a leaf, vein side up,
Fatty acids are synthesized in the cytosol, but acetyl CoA is produce from pyruvate in the mitochondria. Therefore the acetyl CoA must be transferred from the mitocho
Assessment The severity of symptoms depend on degree of obstruction. In case of severe obstruction, ECG shows right ventricular or biventricular hypertrophy. Cardiac cathet
Briefly explain why cutting a flatworm into pieces would not kill it
Food Applications of Gum tragacanth Gum tragacanth finds various food applications. These include: In dairy products, it functions as stabilizer in ice cream, ice pops a
What are the respective functions of the separation of homologous chromosomes and of the separation of identical chromatids in meiosis? The separation of homologous chromosomes
PROTEINS Protein was discovered by Mulder. Berzilius gave the catalytic concept & gave the word protein, which means first rank. Protein holds the 1st place in
Explain the Menopausal symptoms Menopausal symptoms include: (i) hormone-related gynaecological problems that occur around the menopause, and (ii) post-menopausal uterine
are they diploblastic or triploblastic
Some biologists prefer to categorize brown, red, and some green algae as plants rather than protists. What characteristics of these algae support like classification? Brown and
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