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Lex A is an E. coli gene whose product regulates the transcription of certain target genes that are located at different positions in the bacterial chromosome.Identified target genes appear to be in
In pretty much every transformation protocol I've seen SOC medium is used to grow the bacteria for a short while after the transformation and before plating.
When humans get the common cold, a common symptom is a stuffy or runny nose. Question: Is that the body's immune response or is that the virus's doing?
When are population dynamics models useful? There seems to have been a lot of research about it, but how does it help? If I need data about how a population will evolve under what conditions, I need
I've used HPLC (high performance liquid chromatography) before (once, so I'm barely even qualified to know what it stands for) so I was surprised when my lab mate told me she would be using an alter
I'm trying to understand if the timing of human bowel movements in the morning is associated with the circadian rhythm, and can thus be used to make predictions about the circadian rhythm.
HIV compromises the human body to defend against infection. Yet people who are infected with herpes are at less risk of developing AIDS.
Question 1: Why is methyl cellulose used as a pharmaceutical excipient? Is it due to certain chemical properties?
According to the BBC documentary "Wild about Pandas", about half of panda birth results in twins. Question: Why do they have such a high probability compared to other mammals?
I am interested in identifying the maximum potential dissolved sucrose (%w/w) that plant sap could have, and which (biological, physical, chemical) factors constrain the observed sucrose concentrati
Question: Do ants even breathe? Question: If they don't, how do they stay alive?
After someone dies they become stiff, this is termed Rigor Mortis and happens because the cells run out of ATP (I think). But why do the cells need it to remain flexible
A Chinese man has been drinking gasoline to relieve his pain for 25 years. How does the human body metabolize gasoline
Can fruit tissue be grown in a tissue culture as is done to other plant tissues? From the answer to this question, I learned that fruit is alive.
Many plants will grow a new stem if the old one is cut, but it is not a perfect regeneration, and has no likeness in form to the previous stem.
With our fermentations we're noticing that it takes an appreciable amount of time for E. coli (K12 variant) to change from being metabolically streamlined on amino acids to being metabolically stre
Question: How efficiently can plants operate in no-oxygen atmosphere? Question: Do all plants produce enough oxygen for themselves?
According to my lecture notes testosterone generally increases sexual behavior. Given that it's generally thought to be the male hormone I'm not quite sure whether they mean that it also increases s
How could you use radioactively labeled molecules to determine if the genome of a newly identified bacteriophage that infects E. coli is RNA or DNA?
What two body systems perform the actual adjustments in pH and what other systems help to monitor and regulate those systems?
I am most interested in intellectually demanding tasks (e.g., chess matches, solving a puzzle, taking a difficult exam) versus tasks with a similar posture but less demanding (e.g., reading a newspa
A vaccine typically contains an agent that resembles a disease-causing microorganism, and is often made from weakened or killed forms of the microbe, its toxins or one of its surface proteins.
Humans have, in a relatively short amount of time, evolved from apes on the African plains to upright brainiacs with nukes, computers, and space travel.
Today I wondered what the first organism to evolve vision would have been. I assume that it would have been kind of primitive and basic, but of course extremely innovative and eventually useful to a
Do they simply begin ATP production as soon as the correct reactants are present? Or, because they have their own DNA, do they have more complex strategies that vary to benefit the mutual cooperatio