Welcome to the ScienceDuo blog by Chris Wallis and Rhiannon Morris. Screeds on science and sanity from two people who understand neither.

Author Archives: ScienceDuo

How to read a scientific publication

One skill I think a lot of younger science students lack is the ability to read a paper quickly, dissect all the information and then decide whether the paper is … Continue reading

January 2, 2017 · Leave a comment

Classic genetics experiments, Luria-Delbrück’s fluctuation assay and the nature of random mutations in evolution

In this post I wanted to cover a few things related to the classic genetics paper by Luria and Delbrück which won them the 1969 Nobel Prize in Physiology or … Continue reading

May 17, 2016 · Leave a comment

Common misconceptions about Evolution

Before we start tackling some of the misconceptions about evolution it is important to address the question: What is evolution? In the spirit of biology and our lack of distinct … Continue reading

March 29, 2016 · 2 Comments

Mimicry of the Batesian and Mullerian kind

Bates and Muller are two of my scientific heroes and I love mimicry so I thought I would write a short post on Batesian and Mullerian mimicry! Batesian mimicry In … Continue reading

March 25, 2016 · Leave a comment

Allopatric and Sympatric Speciation

Allopatric speciation vs Sympatric Speciation! Allopatric speciation occurs when new species arise as a result of geographic isolation from the ancestral species. It involves an extrinsic barrier to gene exchange … Continue reading

March 21, 2016 · Leave a comment

A Genetic Switch

Continuing our theme of science SNPs I wanted to talk about a classic model of gene regulation in λ Phage which was elucidated by some very elegant experiments that have … Continue reading

March 20, 2016 · Leave a comment

The Tryptophan operon, it Trps people up.

Another short molecular biology snippet for you all! The Tryptophan operon is a super neat way of controlling gene expression. This is my favorite operon! Hope you enjoy it too! … Continue reading

March 17, 2016 · Leave a comment