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Acuity of one's sight is rated on the 20/20 scale. An online search appeared to indicate there is no comparable 'standard' to rate olfactory acuity.
I'm not suggesting that the patters on tigers' fur is in any way related to X-inactivation, since I know that only applies to female mammals. But X-inactivation seems like a "natural" phenomenon, wh
Why is the secondary antibody conjugated to the enzyme in ELISA, instead of the primary antibody?
If climate change causes a 12 C increase in temperature over the next 10 years, what will happen to the flowers? Explain in detail.
Usually when left in hot temperature, the milk curdles (which I know when I boil it and it starts separating).
We conclude that DNA is the genetic material. But how do we conclude that DNA is the genetic material?
The reputed fusion site is located in a peri-centric region with suppressed recombination and should exhibit a reasonable degree of tandem telomere motif conservation. Instead, the region is highly
If we had significant resources such that the cost of predatory/foraging behavior out-weighed the energy benefit from gaining more resources, would we stop?
When you get sick, you generally don't contract enough bacteria at once for them to succeed in battling your immune system, right?
Everybody mixed their saliva with the saliva of 3 other people, so at the end everybody had a tube with the saliva of 4 different people in it.
What would be an optical explanation for possibility/impossibility?
Plants produce lots of compounds that inhibit (kill or irritate) microorganisms and insects. They have defenses against plant viruses and infections.
Imagine humans were to colonize a distant planet and it was a single one-way trip.
A miRNA regulates its target mRNA by degradation. Let's assume the target mRNA has an arbitrary expression level of 1.
You have isolated C57BL6 embryonic stem cells and have tried a new culture condition to keep them pluripotent. To test the success of your protocol, you are injecting cells into a C57BL6 blast cyst.
From what I have read and understood telomeres cap off how many times a cell can divide before it can no longer divide and that is what causes aging.
Take a human for instance; make a line from the top of our head right down the middle. However, internally it is not the same. Our organs excluding the kidneys, lungs, reproductive organs, etc are n
The HIV antigens that are used in the oral rapid tests, are they infectious?
I have seen some people shivering in the room temperature of 18°C while others of similar body structure do not feel that much amount of cold.
In training for scuba diving, they tell you that when you're bellow 100 ft or so you have to watch out for changes in mental state that resemble drunkenness.
I've read that female mules can sometimes have offspring, but that male mules are incapable of doing so.
It is a common observation that food is tasteless when we have a cold. Why is that so? Please explain.
If I understand it correctly, levels of serotonin in the brain can indicate if a person is happy.
Warm blooded animals like us keep their temperature constant irrespective of their surroundings. But how do they do that? Energy should be supplied from the inside.
Is there a way to generally characterize how species "regrew" after the various mass extinction events happening periodically from 450 Ma to 65 Ma.