In article <tktcs9$1ojov$
1...@dont-email.me>, Richard Robinson
<
ric...@qualmograph.org.uk> on Mon, 14 Nov 2022 at 12:38:33 awoke
Nicholas from his slumbers and wrote
>RustyHinge said:
>>
>> Had biological knowledge been what it is now the word 'virgin' would not
>> have been used: virgin birth is known, but the offsprung is *always*
>> female, and IIRC a clone of the mother.
>
>She'd have to be, with no other genetic input, no ? Barring random
>mutation, if that counts.
It depends upon how sex is determined within the species concerned.
Komodo Dragons are known, in extremis, to produce eggs by
parthenogenesis. Sex is determined by the WZ chromosomal system. This
applies to all birds, some reptiles, some fishes and so on. Female
members of species that use this method of sex determination have a WZ
diploid pair. Males have a ZZ pair of chromosomes (compared with
mammalian males who are XY to mammalian females who are XX).
It is not totally clear how the eggs are produced. The Meiosis process
should produce a haploid gamete for fertilization by a male gamete. At
least some of these female origin gametes double up their chromosomes.
By this process the eggs are diploid but only contain identical
chromosome pairs. So some eggs have an identical ZZ pair and develop
into males. The other eggs have a WW pair, these do not develop. The
Wiki article explains this better than I can.
Parthenogenesis, if it were possible, in humans would only produce
female offspring. Genetically it is unlikely to work for mammals, there
are genes which are only expressed where the gene has been inherited
from the male. Incidentally there are genes that are only expressed when
they are inherited from the female.
>
>
>> Howspomedever, the King James version is poetry, and written by
>> scholars. Other versions like the New English Bible are clumsy.
>>
>> Mebbe more accurate in translation, but clumsy.
>
>But what is mere worldly poetry, compared with The Holey Worms of
>Glod ?
>
><runs away>
>
>
--
0sterc@tcher -
"Oů sont les neiges d'antan?"