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What chromosomes do you get an extra copy for in humans that results in Down syndrome?
Down syndrome is caused by a triplication of the 21st chromosome.
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How many chromosomes are there in a xyy male body cell?
You would have 47 chromosomes because you would have the normal 46 but one extra y with the sex determing pair of chromosomes which would make you have super male syndrome.
Are klinefelter syndrome and Turner syndrome results of nondisjunction of autosomes?
No, Klinefelter syndrome and Turner syndrome are the result of nondisjunction of sex chromosomes. Klinefelter syndrome is caused by an extra X chromosome (XXY), while Turner syndrome is due to a missing X chromosome (XO).
What syndrome is inherited when an egg carrying two X chromosomes is fertilized by a sperm?
Klinefelter's Syndrome results if a person has XXY (an extra X chromosome). The main effects are hypogonadism and reduced fertility.
What condition occurs when a human zygote has 47 chromosomes?
A human zygote with 47 chromosomes has a condition called trisomy, specifically trisomy 21 if the extra chromosome is chromosome 21. This results in Down syndrome, a genetic disorder characterized by intellectual disability and physical abnormalities.
People with down syndrome have how many chromosomes?
47There are 47 chromosomes in someone with Down syndrome; the 21st pair has an extra chromosome. Most people have 46 chromosomes. Down syndrome is also known as "Trisomy 21" - a reference to the fact that someone with Down syndrome has 3 pairs of chromosomes on their 21st pair.
Trisomy-21 results from a mutation to the chromosomes in?
Trisomy-21, also known as Down syndrome, results from an extra copy of chromosome 21. Instead of the usual two copies, individuals with Down syndrome have three copies of chromosome 21. This extra genetic material can lead to various physical and cognitive differences.
Difference between the chromosomes of a person with Down syndrome and a person without Down syndrome?
An individual with Down Syndrome has the presence of all or part of an extra 21st chromosome.
What type of disorders are karyotyping used to diagnose?
Chromosomal disorders can be observed in a human karyotype. It can show whether there are extra chromosomes, or missing chromosomes, or malformed chromosomes, or whether chromosomes have extra pieces, or missing pieces.
What is the genetic cause of Down syndrome?
Both syndrome's indicate the presence of a 47th chromosome (or extra part of a chromosome). Most humans have 23 pairs of chromosomes, totaling 46 chromosomes. For Down's syndrome, the 47th chromosome appears with the 21st pairing. For Klinefelter's syndrome the 47th chromosome appears with the 26th pairing (the gender chromosomes.)
Which stage of meiosis causes Down syndrome?
Mistakes in meiosis may cause Down syndrome. The error happens when the chromosomes segregate into the gametes. The egg or sperm may have too many or too few chromosomes. Down syndrome has an extra chromosome in the 21st pair.
In Jacob syndrome did the nondisjunction occur in the mother or father?
Jacob syndrome, 49XYY, has to occur as a result of nondisjunction in the father. The Jacob Syndrome male would have received the X chromosome from his mother, and both Y chromosomes from the father (since the Y chromosomes can not possibly have come from the mother). Jacob Syndrome can be the result of nondisjunction in meiosis.
What is one example of an abnormal number of chromosomes in humans?
One example of an abnormal number of chromosomes in humans is Down syndrome, which results from having an extra copy of chromosome 21. This condition can lead to intellectual disability, distinctive facial features, and other health issues.
