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Trisomy is a genetic condition where a cell has an extra chromosome. This can lead to developmental abnormalities and health issues in individuals with trisomy. The most well-known trisomy condition is Down syndrome, which results from an extra copy of chromosome 21.
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Type of mutation that causes Trisomy 18?
Trisomy 18 is caused by a type of mutation called nondisjunction, where an error in cell division results in an extra copy of chromosome 18. This leads to the presence of three copies of chromosome 18 in each cell instead of the normal two copies.
How can nondisjuncton result in an individual having an extra chromosome what is this called?
Nondisjunction is a type of chromosomal abnormality where chromosomes fail to separate properly during cell division, leading to cells with an extra chromosome (trisomy) or missing a chromosome (monosomy). When an individual has an extra chromosome, it is called trisomy, such as trisomy 21 in the case of Down syndrome.
What is trisomy 16?
Trisomy 16 is a chromosomal disorder where there is an extra copy of chromosome 16 in the cell. This condition usually results in early miscarriage, with very few cases surviving to birth. Trisomy 16 is one of the most common chromosomal abnormalities detected in miscarried pregnancies.
Adding an extra nucleotide to a DNA sequence producers what type of mutation?
Insertion
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.
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.
When a child has Trisomy when does the mutation occur?
during meiosis
Type of mutation that causes Trisomy 18?
Trisomy 18 is caused by a type of mutation called nondisjunction, where an error in cell division results in an extra copy of chromosome 18. This leads to the presence of three copies of chromosome 18 in each cell instead of the normal two copies.
How can nondisjuncton result in an individual having an extra chromosome what is this called?
Nondisjunction is a type of chromosomal abnormality where chromosomes fail to separate properly during cell division, leading to cells with an extra chromosome (trisomy) or missing a chromosome (monosomy). When an individual has an extra chromosome, it is called trisomy, such as trisomy 21 in the case of Down syndrome.
What chromosomal mutation causes an extra copy of chromosome 13?
Trisomy 13, also known as Patau syndrome, is a chromosomal mutation where there is an extra copy of chromosome 13 in each cell. This condition can lead to various physical and intellectual disabilities.
Down syndrome is caused by having an extra copy of what chromosomes?
21, the condition is also referred to as trisomy 21.
Down syndromeis caused by errors in what?
Downs syndrome is caused by a genetic mutation called trisomy. Trisomy is when an extra chromosome is present on one set of chromosomes, so instead of the 46 chromosomes of a normal human there are 47. Trisomy can often result in miscarriage as the body cannot cope well with extra chromosomes. Downs syndrome is when there is an extra chromosome 21. Other genetic defects which are caused by trisomy are Edwards syndrome and Patau syndrome.
What sex would a person with trisomy X be - Explain?
Trisomy X aka "Triple X syndrome" is a disorder that affects females and is characterized by the presence of an additional X chromosome. Normally, females have two X chromosomes; however, females with trisomy X carry three X chromosomes in the nuclei of body cells. To be male requires a Y chomosome - which those with Trisomy X obviously lack.Trisomy refers to having an extra chromosome - 3 (tri-) instead of 2.Other types of gender related trisomy include:XXY Trisomy (Klinefelter syndrome) where males have an extra X chromosomeXYY Trisomy (or simply XYY karotype) is where males have an extra Y chromosome.
What can an extra chromosome do?
Having an extra chromosome, known as trisomy, can lead to genetic disorders such as Down syndrome (trisomy 21) or Edwards syndrome (trisomy 18). These disorders can affect physical and intellectual development, leading to characteristic features and health challenges. The specific impact of an extra chromosome varies depending on which chromosome is affected.
Causes Down Syndrome?
Having an extra copy of chromosome 21. You are supposed to have 2; when you have 3 (trisomy 21), Down's Syndrome is the result.
A person who has an extra copy of a chromosome is said to have?
TRISOMY
Which genetic disorder does an extra chromosome cause?
An extra chromosome can cause genetic disorders such as Down syndrome, which is caused by an extra copy of chromosome 21. This leads to developmental delays, intellectual disabilities, and certain physical characteristics.
