Strand D: Genetic Processes

Learn about two taxonomy systems that scientists use to classify the life around us.

Cloning makes it possible to bring extinct species back to life. But is that a good idea?

Errors during meiosis can alter the number of chromosomes in cells and lead to genetic disorders.

In April 2016, Let’s Talk Science volunteer Daniel Tarade donated stem cells to help a person who needed a stem cell transplant to survive. Learn what stem cells are, how and why people donate, and what Daniel’s experience was like.

A study on bird feeders and beak sizes shows how an everyday human activity can affect the evolution of another species.

Be a biochemist! Learn how to extract DNA from an onion and find out what DNA looks like.

Medical biotechnology allows scientists to make changes to the genomes of living things. What are the pros and cons of having access to techniques like these?

This backgrounder explains the different ways that cells repair damage to DNA.

In 2013, many Europeans learned their beef lasagnas were actually made of horse meat. Learn about food fraud, and how a Canadian invention can help detect it.

Learn the basics of how DNA can be extracted from cells.

This backgrounder explains the effects of radiation on cells and DNA.