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30% of a population lacks the ability to taste the chemical PTC. Non-tasters are homozygouse recessive for this tasting gene. What percentage of the population are tasters and what percentage of the population are NOT heterozygous for this trait?

This question requires the knowledge of two equations from the Hardy-Weinberg Principle. p + q = 1 and p 2 + 2pq + q 2 = 1 where p = dominant allele, and q = recessive allele. Firstly we know from the questi...
FH
Answered by Fergal H. • Biology tutor
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Differentiate y=ln(x)+5x^2, and give the equation of the tangent at the point x=1

First differentiate the equation, giving you, y'=(1/x)+10x. To get the gradient at this point of the curve, plug in x=1, to get a y' value of 11, and a y value of 5. From there you can plug these three numbe...
HM
Answered by Harrison M. • Maths tutor
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'Conservative governments in the year 1951 to 1964 were successful in their imperial policy’. Assess the validity of this view.

Agree: Macmillan accepted the ‘Winds of Change’ 1960, recognised independence movements and carried out decolonisation 1957-1968 in an effective wayPolicy carried out with support of world leaders and public...
YT
Answered by Yazmin T. • History tutor
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'He brings tragedy down on himself, not by opposing the lie, but by living it' By comparing Arthur Miller's 'Death of a Salesman' and James Joyce's 'A Portrait of the Artist as a Young Man', discuss.

Introduction to an A-Level Coursework Comparison Essay James Joyce’s A Portrait of the Artist as a Young Man and Arthur Miller’s Death of a Salesman are two novels intrinsically concerned with the status of ...
LC
Answered by Luke C. • English tutor
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How does Interpretation A differ from Interpretation B about Hitler’s appeal to the people of Germany? (4)

Interpretation A: Albert Speer, writing in his book, ‘Inside the Third Reich’ written in 1960. He remembers hearing Adolf Hitler speak in January 1931 at Berlin University. Albert Speer went on to become the...
EN
Answered by Emily N. • History tutor
9993 Views