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Discuss the possible effects that mutation can have on the structure and function of a protein (3 marks)

Mutation can result in changes to a proteins primary, secondary and tertiary structure . Deletion mutations and mutations resulting in a new stop codon can result in the shortening of a protein. Proteins can...
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Answered by Emma M. • Biology tutor
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Explain a reflex arc

A reflex arc is the nerve pathway which follows a reflex action. First a stimulus, like a pin prick, is detected by receptors in the skin. A sensory neurone then sends electrical impulses to a relay neurone,...
CS
Answered by Clara S. • Biology tutor
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Lee este texto de la novela de José Martí, Amistad funesta. Complétalo, escogiendo palabras de la lista A – P en la página siguiente. Escribe la letra de la palabra en la casilla.

A K I G H O L J B P I will show the text during the lesson.
KD
Answered by Kate D. • Spanish tutor
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Sketch the function (x^4 + 2x^3 - x -2)/(x+2)

First of all determine the range of the function by looking at its denominator. The function is defined at each point except x=-2 Now to find the zeros of the function first factorise it and equate it to zer...
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Answered by Matteo D. • Maths tutor
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In the phrase “Regibus exterminatis, libertas in re publica constituta est”, which type of phrase construction is “regibus exterminatis”?

First of all, notice that the phrase is divided in two parts. The first part contains a name in ablative case , acting as subject, followed by a past participle acting as verb. The second part forms an indep...
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Answered by Matteo D. • Latin tutor
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