0
What else can I help you with?
What is it called when an individual has three copies of a chromosome?
The presence of three copies of a chromosome is known as a trisomy. An example would be Trisomy 21, also known as Down Syndrome.
A segment of chromosome responsible for a particular characteristic?
DNA or genens these are the segments of the chromosome.
How does trisomy occur?
Trisomy occurs when an individual has three copies of a particular chromosome instead of the usual two. This can happen during the formation of sperm or egg cells, leading to an extra copy of the chromosome in the resulting embryo. Trisomy can result in conditions like Down syndrome, where there is an extra copy of chromosome 21.
The human gene associated with color vision are located on the what chromosome?
The human genes associated with color vision are located on the X chromosome. Specifically, the genes for three types of color receptors (cones) - blue, green, and red - are located on the X chromosome. This is why color blindness, which is more common in men, is often linked to mutations in these genes due to their presence on the X chromosome.
What are the major chromosomal changes in trisomy?
Trisomy is defined as the presence of three homologous chromosomes. For example, Down's Syndrome is caused by trisomy-21, 3 copies of chromosome 21.
What common condition is caused by presence of three copied of chromosome 21?
Down syndrome
What is trisomy syndrome?
In a trisomy syndrome, an extra chromosome is present so that the individual has three of a particular chromosome instead of the normal pair.
What is it called when an individual has three copies of a chromosome?
The presence of three copies of a chromosome is known as a trisomy. An example would be Trisomy 21, also known as Down Syndrome.
What is it called when a segment of a chromosome is repeated?
The mutation in which a segment of a chromosome is repeated is known as duplication.
What does the karyotype of a person with down syndrome show?
A genetic disorder caused by the presence of all or part of a third copy of chromosome 21.
A segment of chromosome responsible for a particular characteristic?
DNA or genens these are the segments of the chromosome.
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.
What determines the sex of an individual?
Presence or absence of the Y chromosome
Explain the difference between trisomy and triploidy describe a way that each condition could occur?
Trisomy is the presence of an additional chromosome, such as having three copies of a particular chromosome instead of the usual two. This can occur during cell division errors, leading to an extra chromosome being introduced. Triploidy, on the other hand, is having three complete sets of chromosomes instead of the usual two. This can occur when an egg is fertilized by two sperm or due to errors in cell division during early embryo development.
How are the three chromosomal aberrations different from each other how are they similar?
The three chromosomal aberrations - deletion, duplication, and inversion - are different in terms of the changes they cause in the chromosome structure. Deletion involves the loss of a segment of the chromosome, duplication results in the presence of extra copies of a segment, and inversion entails the reversal of a segment within the chromosome. These aberrations are similar in that they can all lead to genetic disorders or abnormalities due to the changes in the chromosome structure they cause.
How does trisomy occur?
Trisomy occurs when an individual has three copies of a particular chromosome instead of the usual two. This can happen during the formation of sperm or egg cells, leading to an extra copy of the chromosome in the resulting embryo. Trisomy can result in conditions like Down syndrome, where there is an extra copy of chromosome 21.
What type of mutation causes Edwards' syndrome?
An extra copy of Chromosome 18
