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A trickle of science

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About A trickle of science

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    Lepton

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    http://healthwithabiteofscience.blogspot.co.uk/

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  • Favorite Area of Science
    Biology
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    Blogger
  1. Most sexual selection between species consists of the female being choosy, to find the perfect mate to offer her offspring the best chances in life for survival and to reproduce. However, in humans and other species the male also embarks into the parental offering resources, support increasing the child's chances to develop successfully. So, my question is that due to most males carrying out a parental role, does this mean that males have evolved certain instincts to also become choosy looking for certain aspects and characteristics found in other females?
  2. The initial rate is the beginning of the of the reaction under enzymes normal conditions, so by knowing the initial rate you will be able to accurately compare each enzyme catalysed reaction when changing different variables, such as temperature or adding more substrate which will either increase or decrease the rate of reaction. The increase and decrease will be determined by comparing to the initial rate reaction. Hope this helps.
  3. When I mention sample size I refer to the sample size collect from what, or who the sample is being extracted from. Which from this extracted sample, a small sample concentration will be produced. Also, untargeted amplifications will always occur however, the better the primer the more purified your sample will be, meaning more accurate results.
  4. Focussing on the 10 hallmarks of cancer, more particularly in relation to the characteristic of evading immune destruction. This being that tumour cells evolved the trait to appear normal, therefore escape being forced to undergo apoptosis and being destroyed by various leukocytes. This is where immunotherapy steps in, adopting various methods to strengthen the immune system to recognise various cancers cells depending on the method used. As this technique seems quite promising, should this be the future focus?, and secondly what if a tumour is yet do evolve this characteristic? To me there is always going to be a need for a variety of techniques, I just don't know which should be funded more than others to give that added push.
  5. This is a very interesting subject, most studies do show that when asleep we learn most of our abilities, plus many more. However, what would be more interesting would what they are actually dreaming about, plus does this also mean that animals think via visual and auditory the same as humans, obviously without the language.
  6. In the recent news, once again, the choice to conduct embryos for stem cell research has been highly debated due to scientist increasing the push to increase length of time an embryo can be grown for. This was all initiated due to a study whereby they managed to grow an embryo as long as they could before it became unlawful. Here is a link to the research paper http://www.nature.com/articles/ncb3347. So, I just wanted to know what peoples thoughts were on this subject, and if they believe embryo should be used for stem cell research and if they do how long should the cells be allowed to research. I have wrote an article on this subject if you need to do some catching up http://atrickleofsci...in-1981-of.html My personal opinion is that for the future fight against disease the cells should be allowed to mature much longer. Being aware of other stem cell research like induced pluripotent stem cells do have many advantages, however, they do require many proteins like c-myc, which I am aware stem cells can be induce without c-myc, but as an example using these types protein has shown that some stem cells do encounter a cancerous characteristic. So, I believe there still is a great need for research in regards of embryonic stem cells.
  7. In the recent news, once again, the choice to conduct embryos for stem cell research has been highly debated due to scientist increasing the push to increase length of time an embryo can be grown for. This was all initiated due to a study whereby they managed to grow an embryo as long as they could before it became lawful. Here is a link to the research paper http://www.nature.com/articles/ncb3347. So, I just wanted to know what peoples thoughts were on this subject, and if they believe embryo should be used for stem cell research and if they do how long should the cells be allowed to research. I have wrote an article on this subject if you need to do some catching up at a blog I'm not allowed to advertise per the rules of this forum. My personal opinion is that for the future fight against disease the cells should be allowed to mature much longer. Being aware of other stem cell research like induced pluripotent stem cells do have many advantages, however, they do require many proteins like c-myc, which I am aware stem cells can be induce without c-myc, but as an example using these types protein has shown that some stem cells do encounter a cancerous characteristic. So, I believe there still is a a great need for research in regards of embryonic stem cells.
  8. PCR is definitely a technique to become familiar with, especially if studying biology. There are many types of PCR techniques, which the type used should be considered depending upon the analysis you wish to carry our, and the primer you are using. I personally think PCR's top benefit is the fact that you only require a small sample size, therefore, when adding your primer the DNA it will be amplified many times over. This method is handy especially when testing the presence of a gene, such as a foreign pathogens, but PCR can be used in many ways, just make sure you have a good primer.
  9. Hopefully this helps, but when I was analysing the Adh gene extracted from drosophila, I added a safe-view solution (highlights DNA) mix before hand which allowed for the images to be analyse on the Bio-rad machine after imaging, measuring the light intensities of each band. I guess it depends on what you are analysing, for example the presence of a protein or the amount of protein present. Once again hope this helps.
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