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Topoisomerase II poisons represent some of the most important and widely prescribed anticancer drugs currently in clinical use. These drugs encompass a diverse group of natural and synthetic compoun
I would like to be able to identify genera of fungi based on the shape, size, and color of spores. So the requirements are:Must be able to view a 5 micrometre object clearly with reasonable resolution
I have been looking at this antibiotic called doxycycline which is used mainly as an antibiotic. It has however some interesting anti-inflammatory properties.
After my most recent RNA extraction, the RNA samples had very high 260/230 absorbance ratios, (ranging from 5 to 25).I've never gotten numbers like this and I know the ratio is supposed to be ~2 in ge
There are examples of mathematics in nature such as Fibonacci number, fractals, etc. Are there examples of encrypted information?What I am looking for is a pattern that seems random on the surface,
"Males do not show meiotic recombination, facilitating genetic studies."For a while I have known that this phenomenon occurs, this quote comes from the Wikipedia page on Drosophila melanogaster, and
A sample was diluted by placing a 0.1 mL aliquot into 0.9 mL of diluent,and 100mL of this dilution was pour-plated. After incubation, 217 colonies appeared. What is the CFU/mL in the original specim
The internet turns up millions of pages of speculation, but no Straight Dope. People have been removing the tongues from mammals, and each other, throughout human history. There has to be some scien
It is said that human eye can see light with wavelength approximately between 400nm and 700nm.
As far as I know the fetus is fed by the umbilical cord which basically connects his/her circulatory system with the mother's in order to supply oxygen and nutrients. But how is this possible if the
What factors determine the melting point of a fatty acid?• Chain length• The number of methylene group• The ionized state of the fatty acid• Its degree of saponification• Its
My understanding is that there are two broad categories of cilia: motile and non-motile (also called primary.Examples of the former include sperm flagella and the cilia of epithelial cells that line t
I'm 20, in about 6 months I turn 21. For some time I've been wondering whether there are natural, non-surgical and non-pharmaceutical ways that humans can continue to grow after reaching adulthood.
My understanding, that may be wrong, is that cellulose/fibre has little nutritional value to many animals because it's hard to break down thus making consumption inefficient.
Name the four groups of bio molecule and look up and report what are their special functional groups
I know you can purchase dog and cat breeds that are hypoallergenic so those who are prone to pet allergies will have reduced allergies or none at all.
Eliminate the parameter to find a Cartesian equation for the curve x = -1+3sec(t) and y = 2+3tan(t)
Give an example of phenotypic plasticity that might be triggered by an environmental cue.
What is the evidence that chordin, follistatin and noggin have overlapping, partially redundant roles in the process of neural induction
What germ layer is present in triploblasts but is absent in diploblasts
Explain the observation that segment polarity genes code for many different types of proteins while gap genes and pair-rule genes code only for one class of protein.
You would like to identify an enzyme that could potentially be used in a biosensor to detect explosives. Describe a strategy by which you would find a new microbial enzyme that is active towards the
In a randomly mating laboratory population of Drosophila, 9% of the flies have black bodies (encoded by the autosomal recessive ebonygene) rather than the wild-type tan colour. What proportion of th
Define the following concepts: a)allopatric speciation b) clade
A complex set of different specialized adaptations is needed for a bat to catch insects efficiently using ultrasound echolocation. Offer a brief general argument that such a "perfect" system could n