Asexual Ameoba's, the Changing Environment and Population overkill: If there arises within the environment
a need of a stay in human reproduction, Will Men Go Extinct? [
link to www.slate.com] via @slate
"
The big exception to the palindromes-are-bad rule is the Y chromosome, the chromosome that makes males male. All humans, male and female, have 23 pairs of chromosomes. Just before cells divide, all these pairs line up along the cellular equator. And in some situations, the chromosomes intertwine their arms and swap genes and DNA, a process called crossing over. Imagine two chromosomes, each with one terrible, deadly mutation in a different gene. If they swap segments of DNA just right, both of the bad genes can end up on one chromosome. That chromosome effectively gets sacrificed and disappears (because any embryo that gets it would die), but at least the other chromosome can live on.
XX females can mend all their chromosomes this way, including both Xs. But in males, crossing over can’t eliminate any bum Y-chromosome DNA because the Y in XY males lacks a partner to trade with: If any mutations pop up, they’re stuck there. (The X in XY males also lacks a trading partner, of course, but only temporarily. Male Xs can still cross over in a future generation inside any XX female descendants. Ys never get that chance.)
So whenever malignant DNA arose on Y in the past, cells essentially chopped that DNA out and threw it away."
"
So not infrequently, Y overwrites a good gene with a bad one. The process also tends to—whoops!—accidentally delete the DNA between the palindromes.Is the Y Chromosome causing genetic abnormalities
in what was once a 'perfect' human genome?
According to Geneticists and Scientists,
Yes, in fact it is.
(Biblically, Eve has Always been the one
to blame for the fall of Mankind, however
I believe that the Cause for the Shortened
life span of humans, disease, etc and
THe 'FAll' is in Truth and Fact Written
Upon the Human Genome, and Real
Culprit is in fact the Y Chromosome
attributed to the Male gender.)
THe Fetus does not begin to differentiate into sexes until 6 weeks of gestation. THe gonads and tubes are undifferentiated at first and could become either Male or Female. The Y chromosome provides instructions for the male phenotype. THis is the reason why Males have nipples.
So, where did the Y Chromosome Come from,
and
is it possible to have a living
functional being without a Y chromosome(that may be shortening our lifespan,
and causing un heard of and not discussed
numbers of genetic abnormalites)
Yes. But it is not however possible
to have a functioning being without
an X Chromosome.
There are Two Genetic Abnormalites
that result in multiple X chromosomes
in the Male Gender and the Female
gender, where the result is a functioning
Human, with little to no signs of
any defect or malfunctioning.
One is TRIPLE XXX syndrome, the other
is XX Male Syndrome
[
link to anthro.palomar.edu]
[
link to en.wikipedia.org]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"
Female Sperm is a term that refers to a sperm that contains an X chromosome, produced in the usual way by a male, referring to the fact that when such a sperm fertilizes an egg, a female child is born. However, since the late 1980s, scientists have explored how to produce sperm whereby all of the chromosomes come from an adult woman"
[
link to en.wikipedia.org]
[
link to en.wikipedia.org]
"Asexual reproduction is a mode of reproduction by which offspring arise from a single parent, and inherit the genes of that parent only; it is reproduction which does not involve meiosis, ploidy reduction, or fertilization. The offspring will be exact genetic copies of the parent."
[
link to www.scientificamerican.com]
No Sex Needed: All-Female Lizard Species Cross Their Chromosomes to Make BabiesThese southwestern lizards' asexual reproduction is no longer a secret
[
link to www.scientificamerican.com]
"These lizards and other "parthenogenetic species are genetically isolated," explains Peter Baumann, an associate investigator at the Stowers Institute for Medical Research in Kansas City, Mo., Species as diverse as
Komodo dragons and hammerhead sharks do it asexually if necessary.
The new research by Baumann and his team reveal that these lizards
maintain genetic richness by starting the reproductive process with twice the number of chromosomes as their sexually reproducing cousins."water dragon = water bearer
basically, in concept, all dragons are female
Quoting: Sugarelf Marijuana cultivation and asexual reproduction
[
link to www.rollitup.org]
Turn the plant into a hermie and it
can then pollinate female plants
and produce all female seeds.
See more on the how and the
why this will happen soon for females
in the future here
Menstrual blood banking:
Virgin Birth Scope and Future Thread: BoSon WAT'ER dRAgON (Page 8) and here
Thread: NINE---A Curious Number (Page 17) Bees and Asexual reproduction"Drone Bees are Males. Queen Bees are females. During the mating flight, Drones from one or more hives deposit sperm inside the queen.
When the Queen Bee lays her eggs, she may allow one sperm to enter the egg and fertilize it. That will create a female bee. If she does not allow a sperm to enter the egg, it will be asexual reproduction. It will produce a Drone, or male bee. In spite of the fact that the Queen Bee had sex, Drones, or male bees are produced without sex, or asexually. In addition, if something happens to the queen and she dies or disappears, the worker bees can lay eggs. They never had sexual contact. All the eggs they lay will turn into Drones. The bees can feed pollen to several of the developing bees and turn them into Queen Bees. One of them kills the rest and then mates with the drones produced from the eggs laid by the workers."
(Wiki Answers)