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Why are sex chromosome aneuploidies are less lethal than autonomal aneuploidies?
Wiki User
∙ 11y ago
Aneuploid simply means fewer or more than the normal 2N chromosome count present in an individual.
In humans the only sex chromosome 1N aneuploides that live are individuals with only one X chromosome with limited viability and no reproductive capability.
Since only one X chromosome is active in the cells of a male or a female human and the other X chromosome is a Bar-body it follows that a single X chromosome could
produce a living organism where a single Y chromosome, which has very little genetic material would be inadequate to perform the function of an X chromosome.
Other multiplicities like XYY, XXX and XXY, cause genetic physiologic anomalies that often remain undiagnosed, however, the presence of one or two X chromosomes will produce viable and the XYY and XXX individuals can reproduce.
Autosomal aneuploides generally result in EOD (early embryonic death) due to issues with cell division or with significant changes to gene dosage. Trisomy 21 (Down syndrome) occurs on the smallest chromosome appears to have less effect on doseage, which is why this is one of the few polyploid conditions that produce viable offspring.
Wiki User
∙ 11y ago
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Does The Y chromosome have any DNA?
Yes, although it has less DNA and is smaller than its partner the X chromosome
The father apart two genes are located on a chromosome?
The farthest apart two genes are located on a chromosome the less likely they are to be inherited together. If two genes are on the same chromosome and rarely assort independently the genes are probably located close to each other.
The farther apart two genes are located on a chromosome the?
The further apart two genes are on a chromosome, the less likely they are to be separated by a recombination (crossing-over) event.
Why is monosomy worse than trisomy?
Monosomy occurs when one chromosome is absent from the normal diploid number. This is referred to as aneuploidy which is the loss or gain of a chromosome during meiosis.An example of monosomy is Turner Syndrome. One of the sex chromosomes is missing. In an unaffected female there are 2 'X' chromosomes. But in Turner Syndrome there is one sex chromosome missing.Trisomy occurs when there is three copies of a chromosome instead of the normal diploid number. This is also referred to as aneuploidy because there was an extra chromosome added hence, an abnormal amount of chromosomes.An example of trisomy is in Trisomy 21(Downs Syndrome) in which chromosome 21 has an extra chromosome.
What will happen if a human have more or less chromosomes?
If you have more or less chromosomes,you will have a rare disease called "anti-chromosome".it is also known as Down Syndrome.You may suffer from brain damage or cancer too.This is a very rare disease.
What effect does nondisjunction have on the chromosome number of the gametes?
It gives one of the gametes an extra chromosome and leaves the other gamete with one less chromosome.
Are less lethal weapons legal?
The use of non-lethal weapons are regulated by the various states and country. You have to check the laws in your specific jurisdiction.
What is less lethal weapon?
Weapons used (mainly) by law enforcement officers. They are not intended to cause death (although they MAY- the term is LESS Lethal, not non-lethal) to rather to disable a person. An example might be a shotgun that fires a "beanbag" projectile rather than lead shot, or a TASER.
Does The Y chromosome have any DNA?
Yes, although it has less DNA and is smaller than its partner the X chromosome
Are there any nonlethal and legal bullets?
Yes there is, its called "less lethal ammunition" not nonlethal as anything that you shoot at someone could possible kill them if it hits a vital area or hits them just right. Go here to look at all the different manufacturers of less lethal ammunition http:/directory.officer.com/buyersguide/WEAPONS_-_AMMUNITION/Less-lethal_ammunition/index.html Also this is a good description of what less lethal is all about: http:/en.wikipedia.org/wiki/Less-lethal_weapon Be safe..
Why is lethal injection approved to be a means of death penalty?
Because it is considered to be less painful.
What chromosome is abnormal in a human karyotype?
when the chromosomes is 47 or less than 46
Why is the eukaryotic cell's DNA sometimes in chromosome form?
The DNA of the Eukaryotic cell is sometimes seen in chromosome form because of the simplicity of the cell. The more complex the organism, the less likely the DNA will be seen in chromosome form.
Whats the most lethal gun?
The AK-47 is the most lethal gun because you can learn how to use it in one hour or less. It is also the most produced weapon in the world.
Is a hollow tip bullet less lethal than a standard bullet?
"Less lethal" is a very subjective term, however, a hollow point bullet is generally considered to be more effective in regards to stopping an adversary than a round nosed bullet.
What is the medical term meaning cell that has one extra or one less chromosome?
aneuploidy
What happens if you have more or less chromosomes?
If you have one additional pair of CHROMOSOME 23, you have DOWN SYNDROME.If a person has fewer than 46 chromosomes, they will die. With more than 46 chromosomes, it depends on the chromosome type , but mostly disorders or syndromes will occur. Death is also a possibility in this case.AnswerThe condition wherein the number of chromosomes in a individual is more or less than the expected number of chromosomes is called aneuploidy.Examples include Down's Sydrome (three sets of chromosome 21), Klinefelter's syndrome (one extra X chromosome in males), Turner's syndrome (one X chromosome less in females), Edward syndrome (extra chromosome 18).
