Top answers

Describe how genetic fingerprinting is carried out? (example of 6-mark question)

Every individual's DNA sequence is different and genetic fingerprinting can be used to distinguish individuals based on their unique DNA sequence. To begin, DNA needs to be extracted from a sample , which co...
FH
Answered by Fabiola H. • Biology tutor
8174 Views

¿Cuáles son las ventajas y desvantajas de las redes sociales?

I would explain to the student what the marker is looking for: Communication and content, accuracy and quality of language (vocabulary, range of tenses, opinions) I would advice on how to structure the respo...
ST
Answered by Sophie T. • Spanish tutor
3375 Views

The equation for the reaction between ammonia and oxygen is shown. 4NH3(g) + 5O2(g) ⇌ 4NO(g) + 6H2O(g) . Calculate the entropy change of the reaction, using data from the table below.

GAS So / J K -1 mol -1 NH3(g) 193 O2(g) 205 NO(g) 211 H2O(g) 189 To calculate the entropy change, use Delta S = sum of products - sum of reactants, in their corresponding stoichometry. Remember to check the ...
Answered by • Chemistry tutor
9627 Views

How do cells become specialized?

All cells in our body contain the same genetic information stored in the DNA chromosomes located in the nucleus. So how do cells become skin cells, liver cells etc.? Cells undergo a process called differenti...
Answered by • Biology tutor
50698 Views

Do we live at the 'end of history'?

The term “end of history” comes from the academic works of Francis Fukuyama, who coined the term to signpost the endpoint of mankind’s ideological and socio-cultural evolution. He believed that following the...
2280 Views