Top answers

Resistance to antibiotics is caused by a mutation. What is a mutation?

A change in the DNA base sequence resulting in a different protein structure.
EB
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In most transformers, why is the power output is less than the power input.

As some energy is lost as heat/sound meaning the transformer is not 100% efficient
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Answered by Ethan B. • Physics tutor
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Explain why an atom has no overall charge

As the number of negatively charged electrons is equal to the number of positively charged protons, therefore the overall charge is zero
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Answered by Ethan B. • Chemistry tutor
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State the difference between Apoplastic and symplastic pathways of water movement in plants

•Apoplastic- in cell wall and water moves by cohesion. •Symplastic- in cytoplasm and water moves by osmosis.
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Answered by Ethan B. • Biology tutor
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Why is methylamine a stronger base than phenylamine?

Methylamine is CH 3 NH 2 , and phenylamine is C 6 H 5 NH 2 . In methylamine, the methyl group exerts a positive inductive effect on the nitrogen atom in the amine group. This means that electrons are "p...
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Answered by Matthew W. • Chemistry tutor
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