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The genetic code is described as being degenerate. What does this mean? and why ?

We say that the genetic code is degenerate because there are several codons, which code for the same amino acid. For example UCA, UCU, UCG and UCC all code for Serine. This is due to the fact that mRNA codin...
MD
Answered by Maria D. • Biology tutor
14348 Views

If cells can respire anaerobically, why do humans need oxygen?

Cells can indeed respire - or release energy - without oxygen, using anaerobic respiration. Here, energy is released from glucose to generate a substance called lactic acid. This is a good temporary solution...
SJ
Answered by Samuel J. • Biology tutor
26260 Views

Why don't antibiotics work against viruses?

Antibiotics are a class of drugs which were discovered to be effective against bacterial infections, strictly speaking, they are called antibacterial chemotherapeutics; meaning they are drugs which selective...
TC
14497 Views

What kind of influences form the shape of a building?

First of all we have to consider natural conditions, for example the geographical area, climate and the structure of the ground. All these factors play a siginificant role in constructing a piece of art. Bea...
NA
2809 Views

Describe the primary and secondary effects of an earthquake.

One common primary (or immediate) effect of an earthquake is the destruction of buildings. The collapse of buildings could in turn lead to the loss of life. Earthquakes may also cause damage to vital infrast...
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Answered by Sam W. • Geography tutor
28437 Views