What if you removed the Y chromosome from every cell of an adult man's body?

Answer 1

Well, if the man was fully grown: probably nothing. The Y chromosome has absolutely NO genetic information on it. It simply determins which sex and embryo forms. Even from a child, nothing might happen to it.

There are many genetic diseases linked to XY chromosomes. XXY, XYY, X, XXX are all gentic diseases that can occur.

Answer 2

Here's some information for you:
In humans, the Y chromosome spans 58 million base pairs (the building blocks of DNA) and represents approximately 0.38% of the total DNA in a human cell. The human Y chromosome contains 78 genes, which code for only 23 distinct proteins. This relationship is typical in that most species' Y chromosomes contain the fewest genes of any of the chromosomes.[citation needed]

Because the Y chromosome changes relatively slowly over time and is only passed along the direct male line, it may be used to trace paternal lineage. It is the cause of the fewest number of known genetic diseases in humans (44 in total).[citation needed]

The human Y chromosome is unable to recombine with the X chromosome, except for small pieces of pseudoautosomal regions at the telomeres (which comprise about 5% of the chromosome's length). About 56, or 72%, of the Y chromosome genes are in this area; as a result, these genes are common between both sex chromosomes.[citation needed]

Genes
AMELY (amelogenin,Y-chromosomal)
ANT3Y (adenine nucleotide translocator-3 on the Y)
ASMTY (which stands for acetylserotonin methyltransferase)
AZF1 (azoospermia factor 1)
AZF2 (azoospermia factor 2)
BPY2 (basic protein on the Y chromosome)
CSF2RY (granulocyte-macrophage colony-stimulating factor receptor, alpha subunit on the Y chromosome)
DAZ (deleted in azoospermia)
IL3RAY (interleukin-3 receptor)
PRKY (protein kinase, Y-linked)
RBM1 (RNA binding motif protein, Y chromosome, family 1, member A1)
RBM2 (RNA binding motif protein 2)
SRY (sex-determining region)
TDF (testis determining factor)
TSPY (testis-specific protein)
UTY (ubiquitously transcribed TPR gene on Y chromosome)
ZFY (zinc finger protein)
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Chromosome-linked diseases
No vital genes reside only on the Y chromosome, since 50% of humans do not have Y chromosomes. The only well-defined human disease linked to a defect on the Y chromosome is defective testicular development (due to deletion or deleterious mutation of SRY. This results in sex reversal, so that a person with an XY karyotype has a female phenotype (i.e., is born a female). The lack of the second X results in infertility.

However, it is possible for an abnormal number (aneuploidy) of Y chromosomes to result in problems.

47,XYY syndrome is caused by the presence of a single extra copy of the Y chromosome in each of a male's cells. Males with 47,XYY syndrome have one X chromosome and two Y chromosomes, for a total of 47 chromosomes per cell. Researchers are not yet certain why an extra copy of the Y chromosome is associated with tall stature and learning problems in some boys and men. These effects are variable and often minimal or undetectable. When chromosome surveys were first done in the 1960s, it was reported that a higher than expected number of men in prisons were found to have an extra Y chromosome, so that for a while it was thought to predispose a boy to antisocial behavior (and was dubbed the "criminal karyotype"). Better population surveys have since demonstrated that the association was simply that boys and men with learning problems are more likely statistically to spend time in prison and that there is no other independent statistical association with extra Y. The "criminal karyotype" concept is inaccurate and obsolete.

Greater degrees of Y chromosome polysomy (e.g., XYYYY) are very rare. Rarely, males may have more than one extra copy of the Y chromosome in every cell (polysomy Y). The extra genetic material in these cases can lead to skeletal abnormalities, decreased IQ, and delayed development, but the features of these conditions are variable.

There are also problems that arise from having an incomplete Y chromosome: the usual karyotype in these cases is 46X, plus a fragment of Y. This usually results in defective testicular development, such that the infant may or may not have fully formed male genitalia internally or externally. The full range of ambiguity of structure may occur, especially if mosaicism is present. When the Y fragment is minimal and nonfunctional, the child usually is a girl with the features of Turner syndrome but a risk of malignancy.

Klinefelter's syndrome (47, XXY) is not an aneuploidy of the Y chromosome, but the extra X chromosome usually results in defective postnatal testicular function. This does not seem to be due to direct interference with expression of Y genes, and the mechanism is not fully understood.

Genetic genealogy
In human genetic genealogy (the application of genetics to traditional genealogy) use of the information contained in the Y chromosome is of particular interest since, unlike other genes, the Y chromosome is passed exclusively from father to son.[4]

so if you remove all the Y chromosomes then all the children will be girls and the next generations will not have any children.

Answer 3

then this world will be ruled by WOMEN!!
and MAN becomes an extinct species...

i read something about the y chromosome... it has a testicular differentiating gene. this genes codes for a product that acts in the undifferentiated gonads of the young embryo and causes them to differentiate into testes. in the absent of the product coded for by the testicular differentiating gene, the undifferentiated gonads develop into ovaries...that's why a woman is born...

ermm... now i think you can imagine what will happen if Y chromosomes are really taken out...

Answer 4

You'd get a man the size of Andre the Giant, with the laugh of Arnold Schwarzenegger, the compassion of a Tasmanian Devil, the odor of an Afghan's left hand, the language skills of GWB, the social skills of Jeffrey Dahmer, the cunning of a rock. You know, an American Football Defensive End.

Answer 5

they will no longer release as much testosterone and gradually become more androgynous. Baby's born with only an X chromosome have Turner's Syndrome and are socially inept (sometimes have webbed toes)

Answer 6

Human extinction

Answer 7

He'd speak in a high voice

Answer 8

He would stop drinking beer, stop liking sex and not want to use the remote control.

Answer 9

He would still look male, think male, behave male.

Answer 10

sorry that in impossible.
but if you ever did do that then
something very very very bad would happen