Showing posts with label mutation. Show all posts
Showing posts with label mutation. Show all posts

20 April 2012

Sexual Violence against Women in South Africa

Regular readers would know by now that feminism is somewhat of a whipping boy for me. This is part of why my knee-jerk reaction to the sophistry that rape in South Africa is perpetuated by the usual suspects of patriarchy, men's sexist attitudes and the terrible Protestant capitalist upbringing forced upon us - not to mention that age old scapegoat The Media and its photoshopped princesses - is one of disbelief.

How sexist am I? Apparently somewhere between male and female hostile sexists, but less benevolently sexist than most people who participated in the Ambivalent Sexism Inventory questionnaire.

In the nature-versus-nurture debate, I put more stock in sociobiology than in the products of society theory. Putting the knee-jerk behind me, I decided to suspend judgement and look at the data before I chop off my genitals and become a nun (or a none?). As before, regardless of what most people would have you believe about feminists and their hysteria, and regardless of what most of them rationalise lies behind the serious issues, we do have a serious problem on our hands in South Africa. We need to do something about the fear that women in South Africa live with - a realistic fear of violence and particularly rape.

How do we know that our culture produces rapists?

This statement - widely believed by feminists (their labelling, not mine) - assumes several initial points:
  1. South African cultures condone or promote rape.
  2. Rapists are mostly socially constructed. That is, a rapist is someone whose actions are instigated and controlled to such an extent by his cultural milieu that committing rape is somewhat of an inevitability.
  3. The prevalent attitude of South African men is sexist
  4. There is a link between this generally sexist attitude of men and our high incidence of rape.
Unlike what one would expect from a cultural milieu that socially constructs beasts of sexual violence, most men in South Africa are not rapists. This presents a problem to the analysis that we're merely suffering from a patriarchy hangover. Paradoxically, this fact does not fill me with joy because it means solving the problem is far more difficult than handing baby boys Barbie dolls and Cosmopolitan magazines to play with in their formative years.

 

If not for sexism, why do South African women live in fear?

I don't believe that sexism is appreciated or condoned by our culture. Of course, there are so many cultures in South Africa that such a statement - and the statement that our culture produces rapists - is essentially meaningless. I only have anecdotal evidence to go by, but believe me telling a girl to knit you a sweater and make you a sandwich will not win you many friends of either gender in my circles.

However, the high incidence of rape in South Africa is somewhat worsened by culture. In particular, there are some superstitious beliefs that hold having sex with a virgin will cure you from AIDS. There are also cases of corrective rape, designed to cure unfortunate lesbians of their preference for women. Most rapists are likely to be male and between the ages of 20 and 40. Furthermore, alcohol and spousal abuse are factors that make your chances of getting raped more.

 

Is rape a gender issue?

Of course such a statement is anathema to me. There is a difference between sex (broadly male, female and other) and gender. Gender is tied with particular social and cultural roles. Suffice to say I am not familiar with a cultural practice in South Africa that condones rape - bar the mentioned voodoo sangoma witchdoctor cures for AIDS and lesbianism. Also bar the lip service that some establishments like the church pay to condemning rape while their servants get caught in the act of child abuse a little too often to lend much weight to their official dogma.

Culturally, the official dogma is still that rape is something that is frowned upon - to say the least. Plus, many men are raped in prison too. However, for the most part, rape victims are female (of any gender) and rape perpetrators are men (who don't deserve their gender bits). I do not believe that we live in a culture whereby men's attitudes are mostly sexist. Of course such attitudes exist, but not disproportionately to the rest of the world. The rest of the world doesn't have a rape problem of our proportions, which again contrasts to the expected situation if rape were merely a result of anachronistic gender attitudes and bias. Furthermore, I couldn't find a study that measured the gender attitudes of South African men. The only stats I could find refer to rape victims and their terrible ordeals.

Whether you put stock in the whole patriarch equals rapist conjecture or not, the harsh reality is getting raped is not a realistic fear most men have to live with - not even in Cape Town's Pink Triangle. Even worse, most women in South Africa are living with a realistic fear that they could be raped. And yes, it does get worse: When women are raped, they are mostly too afraid and ashamed to report the crime to the authorities.

As ridiculous as most humanities subjects are to those of my Vulcan ilk, the concerns raised do not strike me as being ridiculous or based on hysteria. This judging by the testimony of those working in the field of sexual violence, dealing with rape victims on a daily basis, whether you buy into their ideology or not. 

 

What can we do to remedy the situation?

Even if rape in South Africa did result from our cultural milieu, fixing that requires a generation or two and it's impractical to construct a measure of the change or a measure of the results of such change. We would never know if we're socially constructing the right kinds of rape-free genders. We need something that we can do right now to make women feel safer in our society. While most men are not rapists, statistically, most of us should be familiar with a rapist. We cannot afford that rape is something other men do and we can do nothing about. Furthermore, most rape victims know their rapist fairly well. I think a good place to start is with ensuring that women who were raped are not afraid of reporting the crime and have some faith that they can talk to someone who will be able to help.

Another good place to start is to have a Designated Dave kind of character to help prevent rape. Just like Designated Dave takes care of the driving while you take care of the drinking, this character takes care of your drink when you go to the bathroom and generally ensures that whatever you get up to by means of sharing DNA samples is consensual.

What do you think?

Please feel free to leave me a comment so we can find a working solution. As someone who does not associate with feminism or any ideology except Incertitude, I would like to become familiar with working solutions. For the time being, the only such solution I have found is chemical castration.

Sources

I have linked to sources throughout the text. I did my best to sidestep the ideological landmines, but the best sources on rape I could find deserve another mention:
  • Understanding Prejudice, a site dedicated to the Ambivalent Sexism Inventory. This is a questionnaire (survey to you Merkins) designed to determine how much you hate sex. I mean, gender.
  • Violence against women, a World Health Organisation study of 2011. Yes, not something from the Middle Ages I'm afraid.

10 December 2008

Does Darwinian Evolution claim that DNA mutations are random?

"If it could be demonstrated that any complex organ existed, which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down. But I can find out no such case."
[Charles Darwin, Wikiquote]

This post forms part of a series on Mr Marshall's Random Mutator. You can find all the posts here:
  1. The Random Mutator of Perry Marshall.

  2. Is DNA Analogous to Human Language?

  3. How Random is Random Mutation in DNA?

  4. Does Darwinian Evolution Claim that DNA Mutations are Random?


Evolution vs Genetics


Darwinian Evolution came about in 1859 with the publishing of Charles Darwin's On the Origin of Species. The roots of genetics could be traced back to 1865 with the publishing of Gregor Mendel's Experiments on Plant Hybridisation. However, the importance of Mendel's work was not fully realised until the 20th century, with the modern evolutionary synthesis.

It is thus apparent that Charles Darwin made no claims about genetics. Charles Darwin tried to explain how species came about and how some traits become more widespread while others become extinct.


Mu, a Japanese word which roughly translates as 'no thing'. Kind of what Mr Marshall's Random Mutation Generator has to do with Darwinian Evolution, or evolution in general.

What is Darwinian Evolution?


As already noted, Darwinian Evolution and the modern theory of evolution are not the same thing at all. Darwinian Evolution claims the following:
  1. "If all the individuals of a species reproduced successfully, the population of that species would increase uncontrollably.

  2. Populations tend to remain about the same size from year to year.

  3. Environmental resources are limited.

  4. No two individuals in a given species are exactly alike.

  5. Much of this variation in a population can be passed on to offspring."

[Introduction to Evolution, Wikipedia]

Since resources are limited, there is a struggle among individuals of a species for survival. Darwin precisely claims that it is not chance alone which determines survival, but that survival depends on the traits of an individual which enable that individual to survive. In other words, survival of the fittest.

The modern theory of evolution thus bases its principles of natural selection and speciation on Darwinian Evolution, but Darwinian Evolution entirely lacks some of the other modern mechanisms of evolution. This is because the mechanisms of gene flow and genetic drift in particular are based on genetics, with which Darwin was unfamiliar.

What does Darwinian Evolution claim about DNA mutations?


Nothing. Absolutely nothing.

What does Mr Marshall's Random Mutation Generator have to do with Darwinian Evolution?


Nothing. Absolutely nothing.

06 December 2008

How Random is Random Mutation on DNA?

"If we want to postulate a deity capable of engineering all the organized complexity in the world, either instantaneously or by guiding evolution, that deity must have been vastly complex in the first place.

The creationist, whether a naive Bible-thumper or an educated bishop, simply postulates an already existing being of prodigious intelligence and complexity."

Richard Dawkins


This post forms part of a series on Mr Marshall's Random Mutator. You can find all the posts here:
  1. The Random Mutator of Perry Marshall.

  2. Is DNA Analogous to Human Language?

  3. How Random is Random Mutation in DNA?

  4. Does Darwinian Evolution Claim that DNA Mutations are Random?


What is mutation?


Simply put, a mutation is a change in the nucleotide sequence of the genetic material of an organism. This genetic mutation could cause changes in the phenotype of your species. For example, you could have a mommy and a daddy with blue eyes who give birth to a child with brown eyes.

What causes mutation?


"Mutations can be caused by copying errors in the genetic material during cell division, by exposure to ultraviolet or ionizing radiation, chemical mutagens, or viruses, or can be induced by the organism, itself, by cellular processes such as hypermutation."
[Mutation, Wikipedia]

Copying errors, you say? One would think that a system intelligently designed by an omniscient, omnipotent deity would not be prone to copying errors. It surely wouldn't be sensitive to ultraviolet radiation either, given that an omniscient deity would've seen that one coming.

Similarly, if mutations were not random, but predicted and designed by a perfect designer, one would expect that these errors would not be copied over to the next generations, but that some error-correcting mechanism would be in place. This would ensure that if you exercised your free will too leniently and you ended up next to a UV light for too long that your children and your children's children are at least protected from your inability to practice sound discrimination towards malignant types of light sources.

Do mutations in DNA occur randomly and indiscriminately?


This is exactly what Mr Marshall's random mutator suggests. However, in DNA, you don't have one string, like you do in Mr Marshall's random mutator. You have two strands. Both strands consist entirely of the letters A, C, G and T. An A on the one string mostly (but not necessarily) corresponds to a T on the other strand, and vice versa. A C on one strand mostly (but not necessarily) corresponds to a G on the other strand, and vice versa. More significantly, any possible combination of A, C, G and T is a proverbial word in the language of DNA.

This is important, because not all combinations of letters in Plain English are words. Mr Marshall would do well to model his random mutator so that it bewares of the Jabberwocky. At least this would resemble the working of one strand of DNA somewhat. Since any combination of letters in the DNA alphabet form meaningful words in the genetic code, there is no possibility that a random mutation would prevent your genetic information from being transferred. It follows that the randomness of mutation in DNA is immaterial, because no mutation would cause your organism to necessarily become extinct.

Cro-magnon skull
A Cro-magnon skull. Mr Marshall's random mutator reasons that natural selection implies that we can revert our current human population back to Cro-magnons, and if we can't evolve to our current level of humanity, humanity would necessarily become extinct.

Mutation does occur randomly, but not indiscriminately thanks to natural selection. A mutation in some of your DNA is not necessarily a mutation in all of your DNA, or in all of the DNA of a particular species, as only the mutations which get passed on to your offspring are relevant. Mr Marshall's mutator does not model this scenario at all, but his model implies that any random mutation in the DNA of a particular organism automatically occurs species wide.

Mr Marshall's random mutator does not model natural selection


Mr Marshall reasons that since you can mutate randomly and then revert back to your selected text, his mutator does model natural selection. I fail to see how taking modern day humans and reverting us back to archaic homo sapiens has anything to do with natural selection. Besides, his 'Revert To Selected Text' button does not in fact revert back to selected text. It entirely clears the text. As an information scientist, Mr Marshall should surely be aware of Nielsen's heuristics. Poor user interface design does nothing to bring your point across more clearly.

Natural selection is not a carefully designed, directed process. Nor is it capable of being completely ignored in a model of mutation. Sticking with Darwin's definition:

"One general law, leading to the advancement of all organic beings, namely, multiply, vary, let the strongest live and the weakest die".
[Wikiquote, Charles Darwin]

There is nothing in this mutator that models selecting the strongest letters, words or sentences, and letting the weakest letters, words or sentences die. Note that this mechanism does not imply a designer. This mechanism could be brought about by an outbreak of Aids in your population.

Surely, if your DNA were designed by a perfect, omniscient deity, she would've seen that one coming too? Why then are some people immune to Aids while others are not? Why then are some more immune to malaria, while others are not? Natural selection seems to explain that, without the need for a designer. Mr Marshall's random mutator does not.

By the way, I haven't mentioned Cthulhu in this post. I just thought I'd randomly mention that.

05 December 2008

Is DNA analogous to human language?

"It all starts with random mutation, from which natural selection can choose winners. Since DNA is a language based on a four-letter alphabet (A, C, T, G); since letters form words (Codons) and words form instructions (Genes) we can test the concept in Plain English."
Mr Perry Marshall


This post forms part of a series on Mr Marshall's Random Mutator. You can find all the posts here:
  1. The Random Mutator of Perry Marshall.

  2. Is DNA Analogous to Human Language?

  3. How Random is Random Mutation in DNA?

  4. Does Darwinian Evolution Claim that DNA Mutations are Random?


The analogy that DNA is a language like Plain English is just a metaphor. It's a very convenient metaphor to explain the mechanisms of DNA, but as a metaphor, it should not be taken too literally. Operations on a string of text in English do not represent operations on DNA. Here is why:

DNA is a language based on a four letter alphabet (A, C, T, G)


This seems pretty valid and it does clarify the workings of DNA a little. However, letters in Plain English do not work like this:

"Each nucleotide sub-unit consists of a phosphate, deoxyribose sugar and one of the 4 nitrogenous nucleotide bases. The purine bases adenine (A) and guanine (G) are larger and consist of two aromatic rings. The pyrimidine bases cytosine (C) and thymine (T) are smaller and consist of only one aromatic ring.

In the double-helix configuration, two strands of DNA are joined to each other by hydrogen bonds in an arrangement known as base pairing. These bonds almost always form between an adenine base on one strand and a thymine on the other strand and between a cytosine base on one strand and a guanine base on the other."

[Transfer of information via the genetic code, Wikipedia]

The letters A, C, T and G represent nucleotides. While these letters are the basic building blocks of DNA, just like letters are the basic building blocks of words, nucleotides are further divisible into more basic building blocks.

Nucleotides from Wikipedia
A nucleotide is composed of a ring of nitrogen, carbon and oxygen atoms, a five carbon sugar (together referred to as a nucleoside) and one phosphate group.
[Nucleotide, Wikipedia]

While you could argue that letters are formed by ascenders, descenders, markers and serifs, these do not represent the basic building blocks of letters in the same way that a ring of nitrogen, carbon and oxygen atoms, a five carbon sugar and one phosphate group represent the basic building blocks of nucleotides.


The Gypsy Curse font from sinisterfonts.com. Does it look like nucleotides? Didn't think so.

Letters are not further divisible into functional parts in Plain English, but the nucleotides which make up DNA are further divisible into functional, stand-alone, chemical parts.

Furthermore, in any language there are rules which stipulate which letters can go next to which other letters. You'd mostly have a vowel next to a consonant, for instance.These rules are not determined by the message encoded in the text, but have to do with the conventions of the language.

This is different from DNA because DNA is not a language. DNA mostly forms as two strands: an adenine base on one strand and a thymine on the other strand and between a cytosine base on one strand and a guanine base on the other. This arrangement is not determined by convention, nor by the genetic code contained in the DNA, but the chemical properties of nucleotides and the resulting Hydrogen bonds.

Random mutations on a single string of Plain English text do not take the double helix structure of DNA into account.

This means the claim that we can test DNA concepts with Plain English is fundamentally flawed. The analogy that DNA is similar to Plain English is entirely inappropriate, as random operations on an entire string of text do not equate to any kind of operations on DNA at all.

04 December 2008

The Random Mutator of Perry Marshall

"Oh no! He's a creationist proving his point with a spam generator."
http://ave-imperator.blogspot.com/


This post forms part of a series on Mr Marshall's Random Mutator. You can find all the posts here:
  1. The Random Mutator of Perry Marshall.

  2. Is DNA Analogous to Human Language?

  3. How Random is Random Mutation in DNA?

  4. Does Darwinian Evolution Claim that DNA Mutations are Random?


This random mutator is an attempt by Mr Marshall to debunk Darwinian Evolution. Note that Darwinian Evolution is merely the origin of our current Theory of Evolution. No biologist currently believes in Darwinian Evolution in its strict sense, as the Theory of Evolution itself has gone through the processes of adaptation, genetic drift, gene flow, mutation, natural selection and speciation.

mutation
A mutation. It might be pretty damn ugly, but it's not extinct.

It is thus clear from the outset that this random mutator is a straw man argument. Nevertheless, information scientist to information scientist, yet biological layman to biological layman, let's scrutinise this random mutator of Mr Marshall.

How Mr Marshall Imagines Random Mutation Works



  • the genetic code of DNA is analogous to a high-level human language. Letters map to amino acids, words map to codons and sentences (or the meaning of sentences) map to instructions in the genetic code

  • random mutations in the letters of words are similar to mutations in the genetic code of DNA

  • random mutation occurs among the entire portion of code without keeping certain portions intact

  • Darwinian Evolution claims that these mutations are completely random and are not subjected to any kind of selection process

  • a selection process implies a designer of that process. Hello, Cthulhu!

  • if you apply random mutation to a sentence and you don't get a new meaningful sentence immediately, your mutated organisms immediately go extinct


In the following posts, I shall take each of these points to task as patiently as I can while listening to Slayer. I've already dealt with Mr Marshall's spurious claims that DNA proves the existence of god. Hopefully, these posts would also lead to a healthy debate. All comments, hate mail and bottles of single malt whiskey are welcome, however I shall only take intellectually honest comments seriously.

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