Tag Info

New answers tagged

4

Note: This is based on literature searches I've done a while ago out of general curiosity. I'm in no way an expert on human reproduction. If I understand you correctly you are basically asking if there are any evidence for sex biases in offspring between families, that has a heritable genetic basis. This has been an active research topic for a long time ...


2

The question you're asking is essentially a version of an old riddle: If you flip a coin ten times and it comes up heads each time, what are the odds that the coin will come up heads when you flip it for an eleventh time? And of course the answer is that the odds are fifty-fifty. You could instead argue that 10 heads in a row is evidence that the coin is ...


2

First, you need to recognise the difference between Natural selection and Artificial selection. As a basic definition, you can say that in natural selection, selection is done on fitness (overall, long-term success of reproduction) and is determined by the complete living environment of the species. In artificial selection, selection is done by humans on a ...


3

Selection is a mechanism of evolution which favours specific forms of traits over others, this can cause the spread of beneficial mutations through a population. Natural selection is the spread of beneficial traits/genes through populations as a result of the natural variance in their effect on reproductive output (a function of life history traits like ...


0

In principle, eugenics is just like selective breeding of animals and plants. For example, dogs have been bred for a variety of traits to fit into several niches, and corn has been bred to produce large yields in several climates. Eugenics would attempt to do the same for humans. However, no one agrees on how to "improve" the human gene pool, and far too ...


2

This is a draft. How do the pharmacodynamics of the NSAIDs differ - -? Merck's manual ch. 36 to start little bit at an introductory level: The anti-inflammatory activity of the NSAIDs is mediated chiefly through inhibition of biosynthesis of prostaglandins (Figure 36–2). Various NSAIDs have additional possible mechanisms of action, including ...


0

Glybera doesn't target all cells, and doesn't target fat processing cells. Glybera is adeno-associated virus 1, which normally infects skeletal muscles. Glybera is delivered by intramuscular injection, so the virus easily infects the muscle tissue. The infected muscle cells produce a variant of lipoprotein lipase that has better activity than normal LPL and ...


1

Grey hair is one of many age related traits. Other traits showing a positive correlation with age include Parkinson's, cancer, and Alzheimer's. There are two key theories as to why age-related disease & decline occurs. But the key message is just because something evolves, it doesn't mean it's advantageous. First of all is mutation accumulation (MA) ...



Top 50 recent answers are included