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Garlic contains a chemical called Allicin which has antimicrobial properties. Describe how this could have occurred through natural selection.

Allicin has antimicrobial properties and can therefore protect garlic from fungal and bacterial infections and is coded for in the DNA of the garlic by an allele. The presence could have been the result of w...
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Answered by Lorenzo C. • Biology tutor
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Describe the photoelectric effect and what it tells us about the properties of light .

The photoelectric effect describes the process by which surface electrons are emitted from a metal when light is shined on it. This occurs because the electrons are able to absorb the electromagnetic energy ...
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Answered by Lorenzo C. • Physics tutor
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How do you use the pythagoras equation?

Used for right angled triangles where c is the hypothenuse and a and b are the two other sides. Equation: a 2 + b 2 = c 2 Label the sides of the triangle before starting. To find the length of c you do the r...
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Answered by Patricia S. • Maths tutor
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How do I solve x-6=15?

To solve the equation means to make x the subject i.e. to make x on its own. Therefore, we need to add 6. If you add 6 to one side you must also add 6 to the other side. x-6+6 = 15+6 x = 21 So x=21.
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Answered by Pearl T. • Maths tutor
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What are the modes of genetic inheritance?

Genetic conditions can be passed on from parent to offspring in a number of different 'patterns;' these are the modes of inheritance. In autosomal dominant conditions, only one mutated copy of the gene is re...
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