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What was the significance of Meselson-Stahls experiment? Which form(s) of replication did it disprove and which one(s) did it provide evidence for?

Meselson-stahl's experiment provided evidence for the semi-conservative DNA replication hypothesis, given that 1st and 2nd bacteria cultures showed ratios of N14 and N15 in their DNA that followed that speci...
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Answered by Olivia T. • Biology tutor
4338 Views

For the formation of phenylethanone from benzene: Name and explain the mechanism, write an overall equation and write an equation for the formation of the electrophile.

Overall equation: C 6 H 6 + CH 3 COCl ---> C 6 H 5 COCH 3 + HCl Equation for formation of the electrophile: CH 3 COCl + AlCl 3 ---> [CH 3 CO] + + [AlCl 4 ] - Name of mechanism: Electrophilic substituti...
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Answered by William F. • Chemistry tutor
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Explain the roles of the rough endoplasmic reticulum and the Golgi apparatus in protein trafficking and modification.

Proteins are produced at the ribosome. Ribosomes dock to the rER membrane on translocons and peptide is inserted into the rER lumen coupled with ATP hydrolysis. The peptide folds into its tertiary structure ...
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Answered by William F. • Biology tutor
10499 Views

Expliquez le problème du réchauffement climatique.

Le changement climatique désigne aujourd'hui le phénomène du réchauffement climatique, c'est a dire l'augmentation des températures atmosphériques. Cette tendance a été observée dès le début du 20ème siècle ...
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Answered by Jack B. • French tutor
2284 Views

How do you integrate x* (exp(x))??

The easiest method to use in this incidence is integratation by parts. So let u=x and dv/dx=exp(x). Therefore du/dx=1 and v=exp(x). Then we use the formula where integral(u du/dx)=u v-integral(v*du/dx). So i...
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Answered by Harmony J. • Maths tutor
11986 Views