Survivalist Pro
Survivalist Pro
Photo: Tom Fisk
In humans there are 6 common sex karyotypes: XX, XY, XXY, XXXY, & XYYY. ... With this in mind, the chart in the above tweet can more accurately be rewritten as: X – Female. XX – Female. XXY – Male. XY – Male. XYY – Male. XXXY – Male.
Tungsten Tungsten, which is Swedish for "heavy stone," is the strongest metal in the world. It was identified as a new element in 1781. It is...
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Boredom can improve our mental health Taking a break and allowing yourself to feel bored presents a valuable opportunity for our overloaded brains...
Read More »Reality's Last Stand is a reader-supported publication. All articles are free, but if you would pay to access this article behind a paywall, please consider becoming a paying subscriber anyway, or making a one-time or recurring donation. I’d rather a million people view this content for free than have it be accessible to only a small group of paying subscribers, but that means I rely fully on the generosity of my readers for support. Thank you! The list of bad arguments forwarded by activists designed to undermine the reality of there being two and only two sexes is very long and constantly growing. I dealt with some of these common arguments for Quillette in 2020. However, I came across a tweet by Dr. Shay-Akil McLean responding to Zach Elliott claiming “there are precisely two sexes (no more, no less).” McLean, who prominently lists five degrees after his name and claims to be a human evolutionary geneticist, took issue with that claim and forwarded a very common—and very wrong—portrayal of biological sex: that different sex chromosome compositions beyond the standard XX and XY each represent their own unique sex. In fact, Dr. McLean appears to suggest in his tweet that there may be as many as 10 biological sexes! Such extreme misinformation would be concerning coming from anyone, but especially so coming from someone with a PhD in human evolutionary genetics who. The 4000+ retweets his tweet received demonstrate just how fast misinformation can spread. However, a glance at his Google Scholar reveals he has authored several papers on racism and only one paper that discusses some topics in genetics yet contains no actual genetic analyses whatsoever. His claim to being a geneticist (of any kind) is therefore dubious. But credentials don’t determine whether someone is right or wrong, and I am sure it wouldn’t be hard to find a real geneticist making the same argument, so let’s look at the argument itself. The argument that individuals with sex chromosomes that deviate from the typical (46, XX and 46, XY) arrangements, such as those with Klinefelter syndrome (47, XXY) or Turner syndrome (45, X0), is common and usually used to argue that there are 6 sexes, though other numbers are frequently thrown around as well. Searching Twitter for the term “6 sexes” returns countless tweets similar to the one below. This argument results from a fundamental misunderstanding about what distinguishes males and females biologically, which is the size of the gametes (sex cells) they produce. Males produce small gametes (sperm) and females produce large gametes (ova). But on an individual level (since not all individuals may be able to produce gametes) an organism’s sex corresponds to the type of primary sex organs (testes vs ovaries) and individual has developed.
(Bloomberg) -- GameStop Corp. posted the biggest quarterly drop in revenue in two years, showing the struggling video game retailer's efforts to...
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Plants, Animals, Protists, Fungi, Archaebacteria, Eubacteria. How are organism placed into their kingdoms?
Read More »In mammals, which includes humans, the Y chromosome carries a gene (SRY) that encodes a testes-determining factor. If an individual has a Y chromosome with a functional SRY gene, they will develop testes and therefore will be biologically male. Absent a Y chromosome and functional SRY gene (unless the SRY gene has been transposed to an X chromosome), an embryo will develop ovaries and will therefore be biologically female. What’s important to note is that the presence of a Y chromosome, or two, or three, etc., all result in the development of testes and therefore these individuals are biologically male. Likewise, individuals with additional or fewer X chromosomes, in the absence of a Y, all develop ovaries and are therefore biologically female. With this in mind, the chart in the above tweet can more accurately be rewritten as:
Elaine Antoinette Parent (August 4, 1942 – April 6, 2002) was an American criminal known as "the world's most wanted woman" in the late 1990s and...
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Those have had it far worse because of hurricanes and power outages also can vouch for these six essentials: Camping fuel to eat your food. Solar...
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Foods for Kidney Cleanse Grapes. ... Beet juice is thought to improve blood flow to the kidneys. Watermelon and lemon juice. Fruits that contain...
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5 C's of Survival Cutting: Fixed blade knives, multitools, axes, and saws all fall under this category. Combustion: Firemaking tools and tinder....
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