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Explain why a mutation in the viral RNA leads to a change in the 3D shape of the protein antigens (3 marks)

A mutation in the viral RNA results in a change in the RNA base sequences. This can result in a change in the amino acid sequence during translation. This then changes the position of intramolecular bonds, s...
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Answered by Virad K. Biology tutor
13149 Views

How do I work out the area of a quarter circle with radius 6cm?

The easiest way to do this is to first work out the area of the whole circle. To work out the area of a circle, the equation is area = πr 2 , where r is the radius. So, to work out the area we work out π x 6...
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Answered by Carla C. Maths tutor
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Implement a rocket launch countdown.

To do this we would create a function with a simple loop that iterates downwards and prints the numbers downwards. Then at the end of the loop we would simply print 'blast off'.def countdown (n): while n &gt...
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Answered by Matthew M. Python tutor
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The line PQ is the diameter of a circle, where points P and Q have the coordinates (4,7) and (-8,3) respectively. Find the equation of the circle.

Start by using the formula d = sqrt((x 2 -x 1 ) 2 +(y 2 -y 1 ) 2 )Therefore, substituting in our coordinates from P and Q:Length PQ = sqrt((-8-4) 2 +(3-7) 2 )= sqrt((-12) 2 +(-4) 2 )= sqrt(160)= sqrt(16) x s...
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Answered by Matt C. Maths tutor
11150 Views

What is the best way to get marks for artist research?

Give each artist a double page spread in your sketchbook. Note down key characteristics of their work and the process of how they make it, it helps to decorate the page in the style of the artist and stickin...
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Answered by Erin H. Art tutor
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