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Describe the process of semi-conservative replication and why is it so important?

The process of DNA replication involves unwinding the original DNA strand by the enzyme DNA helicase . This enzyme breaks the hydrogen bonds between complimentary bases forming two single strands of DNA. Eac...
NM
Answered by Neha M. • Biology tutor
12217 Views

How do I find research for discursive writing?

Research for discursive essays can be found through websites, books and articles. Be sure to avoid using sources which are not academic (Wikipedia, etc). A good example of research for a discursive essay on ...
TB
Answered by Thomas B. • Russian tutor
1290 Views

How does water move up the xylem vessel?

Hydrogen bonds between water molecules give water a ‘stick’ like property called cohesion. This means molecules of water are attracted to each other. Hydrogen bonds also form between water molecules and the ...
RB
Answered by Rehana B. • Biology tutor
4681 Views

How do I know which verbs take être in the passé composé.

Well, the easiest way to remember this is...For almost all non-reflexive verbs, you will use 'avoir' rather than être. There are however, some exceptions. A particularly useful way of remembering which ones ...
MF
Answered by Marc F. • French tutor
1704 Views

When an owl hears a sound, the sound will hit each of its ears at a different time because the separation between the ears results in a time delay. The neuronal stimuli triggered need to reach the audio processing centres of the brain simultaneously; *TBC

*continued;how would you design the neurones leading from the ears to the audio processing centre to ensure that the stimuli will reach it at the same time?We need to start by establishing that the signal fr...
JB
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