Last time we left off with Mendel’s experiments on inherited traits (or phenotypes) of peas. We mentioned these traits are passed down from their DNA sequence and genes.

But what do we mean by DNA sequence?

The structure of DNA was elucidated in the early 1950’s by Francis Crick and…

Previously, we mentioned there are sections of the DNA (called non-coding DNA) that do not lead to the production of a protein because they get cut out of the RNA before it leaves the nucleus of the cell. These sections of non-coding DNA are called introns.

But what is in…

Where do babies come from?

Developmental biology is a field of study that attempts to answer this question with modern genetics. How is it that starting with one cell (the egg) following fertilization we become trillions of cells in hundreds of tissues that is us? Cells divide to form two…

Philip Iannaccone

Phil Iannaccone is a Professor of Pediatrics and Pathology at Northwestern University Feinberg School of Medicine.

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