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What are some chromosomal disorders?
Some examples of chromosomal disorders include Down syndrome (trisomy 21), Turner syndrome (monosomy X), Klinefelter syndrome (XXY), and Cri du chat syndrome (deletion of a portion of chromosome 5). These disorders are caused by abnormalities in the number or structure of chromosomes.
Chromosomal aberrations can be produced by exposure to what?
Chromosomal aberrations can be produced by exposure to ionizing radiation, certain chemicals known as mutagens, and some viruses. These agents can cause changes in the structure or number of chromosomes, which can lead to genetic disorders or cancer.
Is Turner syndrome a chromosomal error?
Yes, Turner syndrome is a chromosomal condition that results from the partial or complete absence of one of the two X chromosomes in females. This leads to certain characteristic physical features and health issues associated with the condition.
How does nondisjunction cause chromosomal disorders?
Nondisjunction is the disappointment of homologous chromosomes to detach accurately during meiosis. This outcomes in the creation of gametes containing a more noteworthy or lesser chromosomal sum than typical ones. Therefore the individual might create a trisomal or monosomal condition.
Asexual reproduction results in identical offspring unless what occurs?
Asexual reproduction results in identical offspring unless mutation or genetic recombination occurs, introducing variation among the offspring.
What chromosomal mutation results in alagille syndrome?
translocation
What does klinefelters syndrome come from what type of mutation?
Klinefelter syndrome is caused by the presence of an extra X chromosome in males due to a random error in cell division, known as nondisjunction. This results in a chromosomal mutation where males have an additional X chromosome, leading to physical and developmental differences.
Which condition is caused by chromosomal deletion?
One condition caused by chromosomal deletion is Cri-du-chat syndrome, which results from a deletion on the short arm of chromosome 5. This syndrome is characterized by intellectual disability, distinctive facial features, and a cat-like cry in infants.
Where is cri du chat located?
Cri du Chat Syndrome or Chromosome 5p- is a chromosomal condition that results in brain abnormalities.
How does Down syndrome occur with no history of Down syndrome in the family history?
It's either a mutation with the gene, or either the mother or father donates an extra chromosome. 2nd Answer: True, and Down Syndrome is not a genetic disease and has nothing to do with family history. By the way, the kind of chromosomal mistake that causes Down Syndrome occurs in many people, but on different chromosomes. Mostly, your body is so tolerant of this kind of mistake that you never see any results.
What are some chromosomal disorders?
Some examples of chromosomal disorders include Down syndrome (trisomy 21), Turner syndrome (monosomy X), Klinefelter syndrome (XXY), and Cri du chat syndrome (deletion of a portion of chromosome 5). These disorders are caused by abnormalities in the number or structure of chromosomes.
When parts of chromosomes are broken off and lost during mitosis or meiosis the result is an?
when parts of chromosomes are broken off and lost during mitosis the results is a chromosomal mutation
When parts of chromosomes are broken off and lost during mitosis or meiosis the result is?
when parts of chromosomes are broken off and lost during mitosis the results is a chromosomal mutation
Chromosomal aberrations can be produced by exposure to what?
Chromosomal aberrations can be produced by exposure to ionizing radiation, certain chemicals known as mutagens, and some viruses. These agents can cause changes in the structure or number of chromosomes, which can lead to genetic disorders or cancer.
Is Turner syndrome a chromosomal error?
Yes, Turner syndrome is a chromosomal condition that results from the partial or complete absence of one of the two X chromosomes in females. This leads to certain characteristic physical features and health issues associated with the condition.
What is mutation results in death called?
A mutation that results in death is called a lethal mutation. This type of mutation typically disrupts essential biological processes, leading to the inability of the organism to survive.
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.
