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No foetus will ever be viable without an X chromosome - so assuming you mean XYYY...
XYY syndrome occurs in about 1 in 1000 male births.
XYYY is very, very rare - but possible. This is usually associated with severe skeletal, intellectual and/or developmental difficulties (though this varies).
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∙ 12y ago
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∙ 8y agoIt is not possible to have a YY chromosome unless the chromosomes have been damaged. Women have XX chromosomes and men, who determine the sex of the child, have XY chromosomes, so the normal combinations are XY or XX. However, there are some genetic diseases that are caused by loss or damage to the sex chromosomes. Two of the diseases are XYY syndrome and XXYY syndrome,
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∙ 13y agoThey cross by having each parent donate ONE chromosome(there are exceptions but they're usually fatal or lead to some serious mutation). So basically in any combination you can only have one Y chromosome at most. XX and XY are the only normal combinations. XXY is possible but that's when an extra X chromosome is passed on. I think it's the mother who passes it down...It's been awhile since I've looked over genetics...I think for a more detailed answer, searching it yourself is better.
Wiki User
∙ 9y agoThe answer to this question relates to the karotype (the chromosomes) of an individual as opposed to the genotype (genes on the chromosomes) of an individual. Therefore a male cannot have a YY karotype.
In humans an X chromosome must be present to produce a viable child. Since the Y chromosome doesn't have sufficient genetic material to produce a viable child, neither would the presence of two Y chromosomes as both would lack the additional genetic material present on a X chromosome.
Viable offspring can have as few as one X chromosome with several instances of triploid individuals
including XXY, XXX and even XYY. Additional Y or X chromosomes occur due to errors during meiotic
division. An additional Y chromosome can only come from the male parent but additional X chromosomes can come from the male parent or the female parent.
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What sex chromosomes do girls have?
the combination of sex chromosomes for a female is XXX it is the triple x because in 1947 a women in North Bonerville Africa found that women have 3 sex chromosomes while males only have two
Autosomes are what kind of chromosomes?
non-sex chromosomes
What is one of a pair of chromosomes that are involved in sex determination of an idividual?
The pair of chromosomes involved in sex determination is called sex chromosomes, rest of the chromosomes are called autosomes.
What is the difference between sex chromosomes and autosomes?
Autosomes are the somatic chromosomes which control the body characters or somatic characters, Whereas Sex chromosomes are the allosomes which determines sex of an individual
What do you call the genes that are located on the sex chromosomes?
genes located on sex chromosomes are called sex-linked genes. In humans, there are two types of sex chromosomes: X and Y chromosomes.Genes located on the X chromosome are called X-linked and genes located on the Y chromosome are called Y-linked chromosomes.
How many chromosomes are there in sex cells and why?
22 pair of autosomes and 1 pair of sex chromosomes. A male determines the sex with XY chromosomes and the female only has YY. 23; half of the normal 46 for a cell. This is so when the male and female cells meet, they will form a normal 46-chromosome cell.
What sex chromosomes do girls have?
the combination of sex chromosomes for a female is XXX it is the triple x because in 1947 a women in North Bonerville Africa found that women have 3 sex chromosomes while males only have two
What is the genotype of normal human female?
XX
What does dispermy result in?
Two YY chromosomes. Which can be triploidy. Don't quote me on this lol
How do autosomal chromosomes different from sex chromosomes?
autosomal chromosomes carry diverse info sex chromosomes determine an individual's sex ---- ok, that is some other dude's answer, now here is mine: the autosomal is all the chromosomes, except for the sex chromosomes. so, in a sense, the autosomal has nothing to do with the sex chromosomes. sex chromosomes determine the offspring's sex, as the guy above said it. autosomal is simply all of the other chromosomes ----- For A+ the answer is "Autosomal chromosomes carry diverse information; sex chromosomes determine an individual's sex."
What are the other 44 chromosomes that are not related to sex called?
The 22 pairs of chromosomes that aren't the sex chromosomes are known as the autosomal chromosomes. The X and Y chromosomes are the sex chromosomes.
Autosomes are what kind of chromosomes?
non-sex chromosomes
How are autosomes similar to sex chromosomes?
Sex chromosomes and autosomes are from the same chromosome, The chromosome has 46 chromosomes and 2 of them are sex chromosomes and the rest are called autosomes
Do autosomal chromosome differ from sex chromosome?
autosomal chromosomes carry diverse info sex chromosomes determine an individual's sex ---- ok, that is some other dude's answer, now here is mine: the autosomal is all the chromosomes, except for the sex chromosomes. so, in a sense, the autosomal has nothing to do with the sex chromosomes. sex chromosomes determine the offspring's sex, as the guy above said it. autosomal is simply all of the other chromosomes ----- For A+ the answer is "Autosomal chromosomes carry diverse information; sex chromosomes determine an individual's sex."
All chromosomes except the X and Y sex chromosomes are called?
homologous chromosomes and autosomal chromosomes
What is one of a pair of chromosomes that are involved in sex determination of an idividual?
The pair of chromosomes involved in sex determination is called sex chromosomes, rest of the chromosomes are called autosomes.
Which pairs on the human karyotype are known as sex chromosomes?
All the chromosomes except the sex chromosomes.
