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What's the benefit of the average human body temperature? It's a balance between preventing infection and not requiring excessive food intake. It is has also been claimed that this is the temperature at which the most essential enzymes are most reactive, without becoming damaged by excess temperature. References: "Mammalian Endothermy Optimally Restricts ...


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No single gene determines the height (a polygenic trait) of an individual. In fact, height is coded for by over 700 genes. Also, I'm caught quite off guard by your suggestion that height isn't linked to sex, which is obviously not true. One gene that is associated with a shorter height (to put it simply), ITM2A, is expressed more strongly in women and so ...


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I think this analogy is not actually that bad, but you are making some incorrect conclusions from it especially regarding 'junk' DNA and which parts of a repository DNA holds (which shows the limits of analogy!). Think instead of the DNA of an organism as a single local copy of a particular commit. There is no remote to compare to and no list of historical ...


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Downloading all this using an E-utils search would be cumbersome as you would have to search against multiple databases. For your specific needs, a GTF/GFF3 file would be good. Basically, a GTF/GFF file has genome annotations (positions of features) and includes features like exons, CDS and in some cases even special codons (such as that for selenocysteine). ...


2

Watch out with analogies. Even when they are somewhat helpful, they are only analogies. That being said, unfortunately, your analogy is completely unhelpful! What if DNA is actually like a software source code repository? You know, it has "master" branch - which is most stable and up-to-date version of program but also it has other branches, experimental ...


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Failure to properly separate homologous chromosomes during meiosis, either by including an extra copy of a chromosome or including zero copies of a chromosome, causes gametes that are 'aneuploid', and as a result, a zygote that results from that gamete will have an extra or missing chromosome as well. For humans, most aneuploidies are completely fatal at ...


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First, let's learn about the vocabulary to describe how living beings deal with their internal temperature with this answer. Now that you have read this answer, you understand that humans are homeo-endo-therms. There are pros and cons of homeothermy. Those pros and cons depend upon the species and esp. upon the type of environment experienced by the ...


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Consider if cavemen would be efficient at defending and fighting each other and predators if they took 15 minutes to warm up from a cold nap before they can start to move. Animals with wider temperature ranges have to maintain many enzyme genes for enzymes that work at different temperatures, and that's inefficient. If an animal is warm, it processes ...


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Different terms in different fields I think that the two concepts are very similar but are used in different fields. The term "modifier genes" is often used in quantitative genetics and in evolutionary genetics while the term "regulatory gene" is often used in molecular genetics. Example of a modifier gene that is not a regulatory gene The concept of ...


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1) I'm told that VNTRs are used in DNA profiling. Does this refer to both minisatellites and microsatellites...or just minisatellites? Actually, it refers mostly to STRs. I worked a bit in forensic genetics and we always published works using STRs markers (one example here, there are plenty in the literature). In addition, I would not be surprised if ...


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I found at least one example of genes where the same genes and the same alleles exist in both humans and other primates but the frequencies of the different alleles are different in different primate species and those are the genes/alleles associated with the AB0-blood system that humans and other primates share. Citations from this site: Of the Old World ...


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