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Name and describe the 4 stages within mitosis? [12 marks]

Prophase [1 mark] nuclear membrane breaks down [1 mark] chromosomes condense [1 mark] Metaphase [ 1 mark] chromosomes are lined up [ 1 mark] along the cell's equator [1 mark]Anaphase [1 mark] one set of chro...
IR
Answered by Ismay R. • Biology tutor
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What is protein Structure

Protiens are polymer of amino acidsAmino acids are joined by peptide bondsPeptide bonds are formed by condensation4 different structures Primary structure is sequence of amino acids held together by peptide ...
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Answered by Victoria W. • Biology tutor
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Describe the mutations which occur in chromosomes

There are four ways that a chromosome can mutate; deletion, duplication, inversion and translocation . Each of these mutations will result in a change in either the sequence or number of genes in a chromosom...
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Answered by Molly N. • Biology tutor
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How are nutrients absorbed into the circulatory system in the small intestine?

Firstly I would ensure the student understands the basic concepts of diffusion and what nutrients are. I would describe how food substances move through the digestive system and break down into amino acids, ...
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Answered by Pippa C. • Biology tutor
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Explain how carbon is cycled in the environment, including the role of all living organisms and the use of fossil fuels.

This question was taken from a recent past paper.Let's start by working out what the examiner is looking for here. This question makes it quite obvious, as it states the words 'carbon' and 'cycle', telling y...
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Answered by Adele P. • Biology tutor
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