microtubules originate from a single centrosome. Give an exampl of how a natural product (toxin from...

microtubules originate from a single centrosome. Give an exampl of how a natural product (toxin from mold,fungi,or plants) can become a tool in studying the cytoskeleton.

Expert Solution

Cytochalasin D and Latrunculin are both considered toxins that have been developed by certain fungi and sponges that both promote the depolymerization of filaments. Upon addition to live cells, Cytochalasin D and Latrunculin disassemble the actin cytoskeleton and inhibit cell movements such as locomotion.

Colchicine is obtained from the autumn crocus (Colchicum autumnale). This is obtained from plant and involve in polymerization of microtubules. Upon addition of colchicine the chromosome structure can be visualized in the cells that halt cell division in metaphase stage. Furthur movement of chromosomes to opposite poles uring anaphase cannot takes place due to depolynerization of microtubules in mitotic spindle. So cell wont enter into anaphase it halts only at metaphase.

gladiator answered 2 years ago

Explain how microtubules polymerize from a centrosome using GTP hydrolysis.

Summarize (in 4 or more sentences, in your own words) – the structure of a microtubule and its polarity. Explain how microtubules polymerize from a centrosome using GTP hydrolysis. Complete the following table: Kinesin Dynein Structure Function(s) in a cell Direction that this motor protein moves *Highlight or use a different text color for similarities shared between kinesin and dynein. Complete the following table: Cilia Flagella Structures Function(s) Types of movements, and how these occur *Highlight or use different text...

Discuss how fusion genes can originate from chromosomal breaks, and how these fusion genes can lead...

Discuss how fusion genes can originate from chromosomal breaks, and how these fusion genes can lead to cancer?

Give an example of a natural monopoly (derived from economies of scale). a. What is the...

Give an example of a natural monopoly (derived from economies of scale). a. What is the motivation behind regulating natural monopolies? b. Discuss the difficulty that the government faces when trying to regulate natural monopolies. Discuss the pros and cons of Average Cost Pricing and Marginal Cost Pricing. c. How might the shortcomings of these methods (from (b) be overcome? Explain.

Fine detail required please! 1) Discuss how fusion genes can originate from chromosomal breaks, and how...

Fine detail required please! 1) Discuss how fusion genes can originate from chromosomal breaks, and how these fusion genes can lead to cancer b) Within your answer, please discuss in detail the genotype, and how this leads to the phenotype of at least one type of cancer c) discuss the genetic screening techniques that can be used to assess this disorder, and any recent developments in this area d) discuss how a detailed understanding of the genotype could lead to...

How do natural and artificial selection differ? Give an example of each.

Quinine is a natural product extracted from the bark of the cinchona tree, which is native...

Quinine is a natural product extracted from the bark of the cinchona tree, which is native to South America. Quinine is used as an antimalarial agent. When 3.10 g of quinine is dissolved in 25.0 g of cyclohexane, the freezing point of the solution is lowered by 7.95 °C. The freezing point and Kf constant for cyclohexane can be found here. Calculate the molar mass of quinine. https://sites.google.com/site/chempendix/colligative

Grasshopper ketone is a natural product isolated from the flightless grasshopper Romalea microptera. From its structure,...

Grasshopper ketone is a natural product isolated from the flightless grasshopper Romalea microptera. From its structure, locate the next types of bonds or atoms. (Note: the dark dot in the middle of the double bonds corresponds to the presence of a carbon.) An sp3-hybridized carbon atom A highly polarized covalent single bond A nearly nonpolar covalent bond An sp2-hybridized carbon atom A highly polarized covalent double bond An sp-hybridized carbon atom A bond between atoms of different hybridizations

How do natural killer cells differ from macrophages?

How do natural killer cells differ from macrophages? Give details.

Polik company makes and sells a single product called Ret. Operating at full capacity will give...

Polik company makes and sells a single product called Ret. Operating at full capacity will give 30000 units per year. Costs associated at this 30000 level of production are as follows: Direct material $450000 Direct labor $240000 Variable overhead $90000 Fixed overhead $270000 Variable selling $120000 Fixed selling $180000 Total $1350000 The Rets are normally sold for a price of $50 per unit. Fixed overhead of $270000 is for a range of 25000 to 30000 units per year. 2. Now...

In an Organic Chemistry Lab entitled: Natural Product Isolation: Isolation of Eugenol from Oil of Cloves...

In an Organic Chemistry Lab entitled: Natural Product Isolation: Isolation of Eugenol from Oil of Cloves a.) What would happen if the NaOH solution was replaced with deionized water inthe first step of the extraction procedures? b.) How would the experiment be different if you used dichloromethane instead ofdiethyl ether as the organic solvent? c.) Why did the solution turn cloudy when you added the 3M HCl? Thanks for the help.

Question