Tuesday, 30 April 2024

New video posted: Gene Regulation - how do cells control the expression of genes?

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I have just posted a video that looks at the complex processes of gene regulation and protein production within cells. In the video, I explo...
Monday, 29 April 2024

New video posted: Translation - making proteins from DNA - decoding mRNA to make the protein

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This is the second of two videos on how cells make proteins using DNA. In the first video, I looked at the first step, which is making the m...
Friday, 26 April 2024

New video posted: Transcription - making proteins from DNA - the mRNA

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This is the first of two videos on how cells make proteins using DNA. The second video looks at how we go from messenger RNA (mRNA) to prote...
Thursday, 25 April 2024

New video posted: DNA Recombination and Holiday Junction: The Key to Genetic Variation

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In this video, I explore DNA recombination, a process where DNA strands swap segments, usually between similar sequences on sister chromatid...
Wednesday, 24 April 2024

New video posted: DNA Repair - BER, direct, proofreading, HR, MMR, NHEJ and NER

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DNA can be damaged in a number of ways (see How can DNA become damaged in the cell?  for more information— and the damage must be corrected ...
Thursday, 18 April 2024

New video posted: How can DNA become damaged in the cell?

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In this video, I look at how DNA can become damaged in cells and introduce four ways damage can occur: deletions insertions substitutions tr...
Wednesday, 17 April 2024

New video posted: DNA replication: How does a cell make a copy of its DNA?

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Have you ever been curious about the precision with which DNA is replicated in our cells, or why human pregnancies don't extend to an un...