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Q: What causes a person to inherit an extra chromosome or to be missing a chromosome?
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What do you call it if a person is missing a chromosome?

If a person is missing a chromosome, it is known as monosomy. Monosomy occurs when there is only one copy of a particular chromosome instead of the usual two copies. For example, a person missing one copy of chromosome 21 would have a condition called monosomy 21 or trisomy 21, which is also known as Down syndrome.


What genes or chromosomes is the muitation that causes turners syndrome?

Turner syndrome is the result of one of the two X chromosomes being missing or damaged in some or all cells. These chromosomes are the sex chromosomes, which determine whether a person will be male or female. As people with Turners only have an X chromosome and no Y chromosome they are born female.


What is a person with Turner Syndrome missing in their karyotype?

The second X chromosome other females have.


How is Turners Syndrome transmitted?

Do you mean how do doctors test for Turner syndrome? It is a blood test to find out about the person's chromosomes, to see if the person is missing the second X chromosome.


What is missing in a person with NF2?

A person with NF2 is typically born with one unchanged and one changed or missing NF2 gene in every cell of their body. Sometimes they inherit this change from their mother or father


Is it true that a person who inherits two X chromosomes will be a male?

Answer:This is not true. If you inherit two X chromosomes you will be a girl. A boy has a X and a Y chromosome. I don't know for sure, but I think so. After all, the numbers xs are greater than ysAnswer:No, it isn't. A person with XY chromosomes is male. Two X chromosomes is female.Answer:It is possible but they have to inherit a Y chromosomes. It called Klinefelter's syndrome (KS). KS has two X chromosomes and one Y chromosome. They can grow breast and have an ovary and have anger problems. Most men like this in up in prison.


What is the link between heredity and the causes od mental disorder?

A person can inherit a tendency toward a mental disorder.


How do doctors identify cri du chat syndrome?

A person with this is missing half of 5th chromosome. They are born with disabilities and they will have a normal life expectancy.


Where do human males get their x chrosome?

When a person is born they get one chromosome from the mom and one from the dad. A female has XX chromosomes a male has XY Cromosomes. So a male would get the Y from the dad and the X from the mom.


What happens when your missing an X or Y chromosome?

Females who are missing an X chromosome (XO genotype) have Turner's syndrome. ?They are short, infertile, broad chested, have low set ears and webbed necks. ?You cannot have a male missing an X or Y chromosome. ?A OY genotype is embryonic lethal.


What does a person with an X chromosome and a Y chromosome have?

male


Why does some people only have 45 chromosomes?

Well down syndrome is causes by the 21st chromosome of a sex cell doubling, and so once fertilisation with the egg commences there will be 3 21st chromosomes. When you have 45 their is multiple things that can happen, the only consistent one is Turner Syndrome, which basically stunts puberty. This only happens in females and it is when they have X instead of XX.