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What is meant by the term mutation?

It is a random and spontaneous change to DNA that can be inherited. Most mutations have no effect on the phenotype, however some have a small effect and rarely do some have a significant effect.
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Answered by Sebastian S. • Biology tutor
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Given X + 3Y = 19 and 2X - Y = 10, find X and Y

This is a simple simultaneous equationFirst we multiply the second equation by 3 to get 6X - 3Y = 30Then we add the first and second equation together to get 6X + X +3Y - 3Y = 30 + 19which we simply to 7X = ...
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Answered by Guillermo V. • Maths tutor
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Describe Round Robin Scheduling

Round robin scheduling is a process by which a computer can multitask. Technically a computer cannot multitask but what round robin does is it gives each task/program a very small time slice of the processor...
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The success of the civil rights movement in the years 1947 to 1957 was dependent on the NAACP [National Association for the Advancement of Colored People]? (past exam question)

There are different approaches to this question but it is important in the introduction to establish how important the NAACP was a factor but also the other factors at play, which here include the efforts of...
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Answered by Evie V. • History tutor
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The curve C has equation y = 2x^2 - 12x + 16 Find the gradient of the curve at the point P (5, 6).

The most simple way to find the gradient of a quadratic curve at a point is to differentiate. Through differentiation a function for the gradient at each value of x can be found. 'y' must be isolated on one ...
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Answered by Matthew S. • Maths tutor
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