Biology Weekly Newsletter - Wednesday, July 30, 2014

Biology newsletter

Top new questions this week: How can flies sense mirrors? I've noted that flies in my house have no problem landing on even perfectly clean mirrors. Why don't they fly straight into them? Can they sense that there is a surface there, even though they can't … entomology sensation   asked by J. Musser 8 votes answered by Jeremy Kemball 2 votes What is the female equivalent of the morning erection that some men experience? There was question about what causes "morning wood." It was answered that the erection in the morning is caused by decline of norepinephrine during REM sleep. Which in part allows to prevent … human-biology endocrinology sex   asked by jnovacho 8 votes answered by Remi.b 11 votes Is there any completely Computation Drug ever launched in market? I am working in bioinformatics(part of it in Drug Designing) for years, still if I have no idea about it. As it is too hard to prove (Pass all Clinical trials) and get FDA Approvals. So, My question … pharmacology   asked by Devashish Das 7 votes answered by Chris 4 votes Facultative Cannibalism? I heard about Larger cats eating the cubs. Is it some kind of facultative cannibalism or they can eat there own kind like that? What are the facultative cannibalism present in animal kingdom? What … zoology ethology   asked by Devashish Das 5 votes answered by Remi.b 11 votes Why are there so many sex determining systems in animals There are several sex determining systems in animals. In mammals XY = male(except in rare cases where SRY crosses with genes on the X so that it is the reverse) and XX = female. In some birds it is … zoology sex   asked by caters 5 votes answered by Remi.b 3 votes What limits the speed of human perception? I'm writing a novel in which the main character's perception and thought processes are sped up considerably, in essence slowing down the world around him. To others, it seems like his reactions are … perception   asked by Elliot Bonneville 5 votes answered by Devashish Das 7 votes Can neurotransmitter depletion cause short-term drug tolerance? I'm curious to know if neurotransmitter degradation factors into drug tolerance and neural conduction and, if so, to what extent. As I recall from textbooks I read as an undergrad, one mechanism of … human-biology neuroscience pharmacology   asked by Slavatron 5 votes answered by MCM 3 votes Greatest hits from previous weeks: Why is DNA replication performed in the 5' to 3' direction? DNA replication goes in the 5' to 3' direction because DNA polymerase acts on the 3'-OH of the existing strand for adding free nucleotides. Is there any biochemical reason why all organisms evolved to … dna replication polymerase   asked by Damian Kao 13 votes answered by Gergana Vandova 22 votes How do warm-blooded animals keep their temperatures constant? 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. I assume that reactions like making … thermodynamics biophysics   asked by Arafat 7 votes answered by GLaDOS 6 votes Can you answer these? amino acid containing branched side chain Branched-chain amino acid are degraded by branched chain alpha-keto acid dehydrogenase complex. These amino acids aren't degraded in liver because of the absence of this enzyme(in liver).Why the … biochemistry metabolism enzymes amino-acids   asked by Haya Dar 1 vote Botany related Genetically improved Leucaena leucocephala seeds I am looking for a fast growing Leucaena leucocephala seeds. Now, I am cultivating Leucaena leucocephala which can grow 6.00 Meters in a year. But I am looking for a genetically improved seeds which … genetics growth   asked by madhureddy480 2 votes Where do the 31 spinal nerves start/meet? Which part of the brain is the first place (from top to bottom) where all 31 pairs of spinal nerves (on each side) meet? Or if they all start at one place - where is that? Nominally, the beginning of … human-biology neuroscience physiology human-anatomy   asked by user133943 2 votes

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