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Outline the four levels of protein structure.

Primary structure is the number as well as the sequence/order of amino acids in a polypeptideSecondary structures are regularly repeating structures which can either be beta-pleated sheets or alpha-helices h...
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Answered by Ethan P. • Biology tutor
2327 Views

Tom has a circular garden of radius 30m and he wishes to cover it with fertiliser. Boxes of fertiliser cover 28m^2 of garden. How many boxes will Tom need to cover his entire garden?

Area of a Circle = π radius 2 Area of Garden = π 30*30 = 2827.43 m 2 Boxes needed = 2827.43/28 = 101
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Answered by Oliver R. • Maths tutor
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Describe how mark-release-recapture technique could be used to estimate a population of mosquitoes.

Capture mosquitoes by taking a sample from the area of interest for a set period of time, mark the collected insects with a non damaging mark and release then.Then allow time for the marked mosquitoes to dis...
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Answered by Anna J. • Biology tutor
5380 Views

How do I find the coordinates of the turning point of the graph: y=3x^2-6x+7 ?

Our first step here is to differentiate the equation of the graph. To do this we will differentiate each of the three parts in the equation, as follows: To differentiate 3x^2, we first multpily the 3 in fron...
JD
Answered by Joshua D. • Maths tutor
7009 Views

In what circumstances would we use the subjunctive mood?

The Subjunctive Mood is used frequently in the Spanish Language. On the most fundamental level, one could say that as soon as their is an element of doubt, uncertainty, supposition or subjectivity, the subju...
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Answered by Paloma G. • Spanish tutor
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