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To make a 5% solution of SDS how many grams of sodium dodecyl sulphate (mw=288.37) would you dissolve in 1050 mLs? Show work.
You have a 5L bottle of 5X TAE avilable, but to perform an experiment you need 1l of 1X TAE. Solve the problem to make the working solution. Show work.
That is to say, are there cells that, between infancy and adulthood, get larger? Or is all growth done entirely via cell division? I'm wondering if it is safe to assume that the approximate number o
Evolution is traditionally spoken of as an inherited change over generations.
I've been reading about homeostatic nature of a lot of neurobiological processes - the brain is trying to maintain a balance by desensitizing receptors, re-up taking and breaking down neurotransmit
I've noticed that in mammalian cell culture, there are often two types of DMEM available. High Glucose and Low Glucose.
I've read that there are several SNPs associated with increased risk of clinical or morbid obesity. I was wondering if there is any evidence that these are under positive selection.
Deinococcus radiodurans is an amazing bacterium with a fantastic survival rate. It can survive to high doses of radiation, in a complete vacuum and in hydrochloric acid.
In the normal function of the kidney, the bloodstream is near emptied of fluids as it moves through the glomerulus, in which glomerular filtrate is formed.
What is the probability of conception in situations when sperm isn't directly ejaculated into the woman's vagina, like:The man's or the woman's hands come into contact with sperm, for example when r
While peptide bonds usually adopt the trans conformation, peptide bonds to proline can exist in either cis or trans conformation. The isomerization between cis and trans is slow, and has been shown
I've been reading about Dorsal Raphe Nucleus, a serotonin- rich part of the brain. I noticed mentioning of "tonic activity" - regular pulsing that releases neurotransmitters. On top of this "tone" t
Consider that an organism has two homologous chromosomes Ap, Am, Bp and Bm (p = paternal and m =maternal) and also has a chromosome Z without a homolog.
I've heard that the brain consumes quite a lot of oxygen and energy, compared to the rest of the body.
I was watching a talk by Michio Kaku and he mentioned that crocodiles (or possibly alligators, I forget offhand) don't actually age -- they can die, but they essentially go through no aging process
Using the Ames test, we add a mutagen to auxotrophic salmonella with mutations in the histidine pathway and rat liver extract to simulate metabolism.
Why do we think chronic inflammation can cause cancer? What makes scientists believe that inflammation causes cancer?
I have just an intuition that the carbohydrate part of glycoproteins help them to fulfil those tasks like in plasma membranes. You can also get many more receptors if you can use carbohydrates too.
From what I read on the NatGeo app, it stated that the speed of the electrical impulses that are sent by a neurone will be approximately 332 kilometers per hour.
I have just taken some images with my light microscope at 400x of (what I think is) some form of filamentous algae from a local pond.Now, I think I am looking at a single cell (centre) with some sort
I would like to know if evolution is continuing to happen in modern humans, assuming things like existence of the nuclear family structure, fidelity to one partner, etc. It seems to me the answer wo
The first book he mentions in the bibliography is Alberts' "Molecular Biology of the Cell". Looking at the description and the reviews it seems that this is a pretty advanced bio-sciences graduate l
Can someone explain in layman's terms how taking longer (especially spending years as a small tortoise) to reproduce was a winning trait, and how their biology delays the processes of senescence to
Our waterways and oceans are showing increased levels of plastic contamination. These plastics are breaking down into smaller pieces. When one goes to the beach and plays in the surf they often swal
Well, most of us have experienced the wonderful feeling of the dreaded hangover. How does it work exactly? I imagine it has something to do with dehydration but what are the underlying mechanisms?