tag:blogger.com,1999:blog-7583674511519808833.post4836215420430664262..comments2024-03-27T00:26:19.644+00:00Comments on Rosa Rubicondior: All-female Fish Makes Creationism Look StupidRosa Rubicondiorhttp://www.blogger.com/profile/06063268216781988588noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-7583674511519808833.post-44409352530536070482018-02-20T20:51:23.226+00:002018-02-20T20:51:23.226+00:00Oh, I should have known better, Rosa. It doesn'...Oh, I should have known better, Rosa. It doesn't surprise me at all that you already noticed that same paper a fortnight ago. <br /><br />I suspect you have written blog posts about parthenogenesis as well. Or else, here's an interesting article about that phenomenon: https://www.sciencealert.com/watch-we-were-once-all-female .<br /><br />Geneticists have discovered that all human embryos start life as females, as do all embryos of mammals. During the first 5-6 weeks of embryonic development it's the X chromosome that works, i. e. the Y chromosome is still (more or less) "sleeping"/inactive. <br /><br />Not until the second month the fetus elaborates enough androgens to offset the maternal estrogens. Then maleness can at last begin to develop in fetuses containing the Y chromosome. <br /><br />AFAIK it's a gene called the SRY gene that activates the Y chromosome,thereby actively inhibiting certain features of the X chromosome. <br /><br />Genuine parthenogenesis per defintion lacks the Y chromosome, so that process always must result in a female offspring. Because of that I've often wondered why Jesus wasn't born a girl. <br /><br />Maybe you know the answer, Rosa? Or we should, both of us, turn to the creationists in order to get this interesting question answered and the process explained in detail why Jesus, a baby boy, is an exception and anomaly?<br /><br />On the other hand, I don't trust creationists or other liars for Jesus. So I'd rather listen to your answer, Rosa. Helmer von Helvetehttps://www.blogger.com/profile/02136543309048013677noreply@blogger.comtag:blogger.com,1999:blog-7583674511519808833.post-32959359986467592792018-02-20T19:41:12.377+00:002018-02-20T19:41:12.377+00:00Thanks Helmer. Here's what I wrote about that...Thanks Helmer. Here's what I wrote about that crayfish earlier. <a href="http://rosarubicondior.blogspot.co.uk/2018/02/yet-another-newly-evolved-species.html" rel="nofollow">http://rosarubicondior.blogspot.co.uk/2018/02/yet-another-newly-evolved-species.html</a>Rosa Rubicondiorhttps://www.blogger.com/profile/06063268216781988588noreply@blogger.comtag:blogger.com,1999:blog-7583674511519808833.post-61867880461042555732018-02-20T19:26:36.016+00:002018-02-20T19:26:36.016+00:00Very interesting, Rosa! Here is another example of...Very interesting, Rosa! Here is another example of speciation and evolution for creationists to consider, explain and, hopefully, refute: http://www.sciencemag.org/news/2015/08/crayfish-create-new-species-female-superclones . <br /><br />Helmer von Helvetehttps://www.blogger.com/profile/02136543309048013677noreply@blogger.com