Biology Weekly Newsletter

Biology newsletter

Top new questions this week:

Why was disease transfer to the Americas one-way?

It is well known that the European colonists brought many infectious diseases to the Americas, and that these had a deadly effect on the native populations, because they had no immunity to them. Were …

human-biology infection  
asked by TRiG 15 votes
answered by user137 14 votes

Is mammalian vision processed as a sequence of frames?

I often read that people believe that human vision has an inherent frames-per-second rate (FPS) that causes stroboscopic effects - such as seeing the spokes of a rotating wheel apparently rotating at …

brain vision  
asked by RedGrittyBrick 7 votes
answered by Dylan Richard Muir 7 votes

What is this creature?

Since it has six legs, I believe it's some sort of insect, but I could be wrong. I spotted it in my Central Texas backyard (Austin area). It was very slow and not at all skittish. For size …

entomology species-identification identification  
asked by Bungle 4 votes
answered by Mike Taylor 7 votes

Can microdialysis be made in Drosophila melanogaster?

I've asked this before in stack overflow's cognitive science community, and someone recommended me to ask here: I've found a couple of studies using microdialysis on insects, but didn't found any in …

lab-techniques drosophila  
asked by Keber 4 votes

Word for bacterial death?

What do you call it when a bacterium dies. Cellular death is apoptosis, necrosis, and bacterial is? I don't simply want to write in a paper that it - well dies!

bacteriology  
asked by Arithmetician 3 votes
answered by mattkaeo 1 vote

What is the best current understanding of how yeast transformation works?

I would like to get myself up to speed with what is currently known to science about yeast transformation. Specifically, transformation of plasmids and linear DNA fragments. I am particularly …

yeast transformation literature  
asked by Superbest 3 votes
answered by Chris 2 votes

Microsatellite shifts (peak calling) GeneMapper! Thesis help!

I'm a masters student attempting to conduct a parentage analysis on a population of fish for my thesis. My advisor and post-docs haven't been very helpful, so I need some help! I have dinucleotide …

genetics population-genetics allele  
asked by Sarah 3 votes
answered by Mike Taylor 3 votes

Greatest hits from previous weeks:

Evolutionarily speaking, why do humans have 46 chromosomes

In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Monkeys, chimpanzees, and Apes have 24 pairs (twenty-four pairs), for a total of 48. What caused humans to have 46? …

evolution genetics dna chromosome cytogenetics  
asked by Gabriel Fair 3 votes
answered by TomD 4 votes

Do we get 1/4 of our genes from each grandparent?

I know that we get half of our genes from each parent, but does it necessarily mean we get 1/4 of our genes from each grandparent? Or is it possible that we might get say 30% from one grandparent, 20% …

genetics  
asked by Frank 10 votes
answered by Luke 12 votes

Can you answer these?

Pharmacokinetics: why do certain drugs follow zero-order kinetics?

I understand that alcohol and phenytoin are two examples of drugs that follow zero-order kinetics. Why do these two particular drugs follow zero-order kinetics as opposed to first-order kinetics?

pharmacology pharmacokinetic  
asked by braves5293 1 vote

Subtypes of Acute myeloid leukemia

I am a computer scientist with no biological background and working on analyzing lab results of patients with Acute myeloid leukemia. They have been tagged with following subtypes of AML: AML with …

immunology pathology cancer  
asked by HappyJennifer 2 votes

Given a microscopic image of a plant, is it possible to determine its age?

Given a microscopic image (let's assume a standard brightfield image) of a plant, is it possible to determine its age?

plant-physiology plant-anatomy  
asked by ggg 1 vote
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