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GCSE Answer: The nucleus functions to store and protect the DNA within a cellA-Level Answer: The nucleus is where the DNA of a cell is stored. It is the site of transcription, where the DNA is converted t...

For efficient diffusion there must be a concentration gradient that is maintained, a large surface area to volume ration and a short distance for the gases to diffuse across. There are adaptations at the ...

As neither of the parents have the condition, it therefore is assumed to be a Homozygous Recessive condition, so requires both the recessive alleles for the disease to be present in an individual (eg ff)....

1) Temperature: increasing the temperature increases the rate of reaction, however this can only happen to a certain point as beyond each enzyme's optimum temperature they get denatured (...

There are four stages of mitosis:
prophase, metaphase, anaphase and telophase.

1) Prophase
Chromatin into chromoso...