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What is the difference between a gene, a chromosome and DNA?

Genes, chromosomes and DNA are three vital components of cells and many students often confuse them with each other. DNA stands for Deoxyribose Nucleic Acid. DNA molecules contain the genetic code which is m...
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Answered by Emily H. • Biology tutor
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How does information from a gene make a protein?

A gene is defined as a section of DNA that codes for a protein. Within a gene you have triplets which are 3 bases in a row that code for a specific amino acid . However there might be many triplet codes per ...
GM
Answered by Georgina M. • Biology tutor
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What is the second line of defence?

What is the second line of defence? Before we start let’s re-cap some key terminology: - pathogen : a microorganism causing disease or illness to its host - lymphocyte : a small white blood cell involved in ...
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Answered by Tumbi O. • Biology tutor
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During the light-independent reaction of photosynthesis, carbon dioxide is converted into organic substances. Describe how

As suggested by the name, the light-independent reaction occurs without the precence of light. To start, carbon dioxide combines with ribulose bisphosphate (RuBP) to produce two molecules of glycerate 3-phos...
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Answered by Bryony J. • Biology tutor
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What is the difference between competitive and non-competitive enzyme inhibition?

The active site of an enzyme is the place on the enzyme molecule where the substrate (the substance which participates in the reaction catalysed by the enzyme) normally binds. Competitive inhibitors slow dow...
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Answered by Krithi R. • Biology tutor
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