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How is mRNA produced in the nucleus of a cell

Helicase breaks hydrogen bonds between the 2 DNA strands to separate them1 DNA strand acts as template (the sense strand)Free RNA nucleotides then attach to exposed complementary bases on the sense strand by...
KL
Answered by Ka L. • Biology tutor
4330 Views

How are proteins synthesised?

Proteins are coded for by genes (a sequence of DNA that codes for a specific polypeptide), in the nucleus the DNA is unwound by an enzyme and then another enzyme with copy the template strand to make a molec...
BR
Answered by Billy R. • Biology tutor
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Why do insulin levels rise in the body following a meal, and what effects does the insulin have?

a) Why do insulin levels rise? After we have eaten, the carbohydrates in the food are broken down to glucose, which is absorbed in our intestines. This means that the level of glucose in our blood rises afte...
TD
3596 Views

Can you explain to me what the Golgi apparatus does?

Golgi ApparatusInvolved in protein and lipid modification by addition of sugar groups Involved in sorting and packaging of proteins and lipidsInvolved in vesicular transport, which is moving substances which...
CB
Answered by Chiranth B. • Biology tutor
3549 Views

Explain how two populations of organisms may develop into two separate species.

The first thing to identify here is that this is a question about evolution. Students should look to give a comprehensive explanation of how organisms evolve via natural selection, while framing the answer w...
WS
Answered by Will S. • Biology tutor
6277 Views