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Explain the structure of the DNA double helix, including its subunits and the way in which they are bonded together

DNA is made up of subunits called nucleotides. Each nucleotide is comprised of one nitrogenous base (either adenine, cytosine, guanine, or thymine), one phosphate, and one deoxyribose sugar. The nucleotides ...
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Answered by Bethan H. • Biology tutor
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Explain how Natural Selection occurs?

Random mutations with a certain species genetic pool will lead to variation within the species. These variations can lead to certain organisms adapting to their environment better. The fittest will survive (...
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Answered by Rhea M. • Biology tutor
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What are the differences between transcription and translation?

Genetic information is stored within DNA in short sections called genes which contain the instructions needed to make a protein. DNA is a very large molecule and cannot exit the nucleus of the cell. Transcri...
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Answered by Matthew M. • Biology tutor
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Describe how the resting state of a neurone in the body is maintained:

Na+/K+ ATP Transporters are found within the plasma membrane of a neurone. At rest, the transporters use ATP to pump 2 K+ ions into the cell for every 3 Na+ ions that are pumped out of the cell. This means t...
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Answered by Konrad G. • Biology tutor
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Can you explain the different types of protein structure? (primary, secondary, tertiary and quaternary)

The primary structure of a protein is the sequence of amino acids found in the polypeptide chains, this sequence determines the shape and properties of the protein.The secondary structure of a protein is the...
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Answered by Flora B. • Biology tutor
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