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Explain the meaning of the terms (a) gene and (b) allele

Gene = the portion of DNA coding for a particular proteinAllele = one of the alternative forms of a gene
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Answered by Charlotte F. • Biology tutor
3147 Views

Find the positive solution to the equation (x^2+9x+18)/(x^2-9)=10

If we first factorise the top and the bottom of the equation we can see that the top is equal to (x+6)(x+3) and the bottom is (x-3)(x+3). This means we can divide the top and bottom by (x+3) giving us a resu...
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Answered by Joseph R. • Maths tutor
3585 Views

Sketch a graoh of current against potential difference for a filament lamp and explain its shape.

(draw diagram on whiteboard) As the potential difference increases, the current increases, since V=IR (where V is the potential difference, I is the current and R is the resistance). Initially the current in...
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Answered by Tamanna D. • Physics tutor
3115 Views

(e*sqrt(e))/cuberoot(e^2)=e^k find k

This an indices question. What you need to do is simplify the left hand side so that you have e to some power and that will give you k. You can start with the rule that square roots and cube roots are 1/the ...
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Answered by Tamanna D. • Maths tutor
3678 Views

Why does the noun "Der Junge" become "Den Jungen" in the accusative case whereas "Der Mann" just becomes "Den Mann"?

"Der Junge" is an example of something called a Weak Masculine Noun . This sounds more complicated than it actually is. Basically, in German, most nouns are Strong , which means they decline (chang...
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Answered by Adam H. • German tutor
9345 Views