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Can human DNA chromosomes be artificially removed to prevent genetic or hereditary diseases like removing the extra chromosome 21 which causes down syndrome?
Wiki User
∙ 14y ago
At present this is not possible.
Wiki User
∙ 14y ago
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What are the causes of heredity diseases?
The causes of a hereditary disease is a missing chromosome, and extra chromosome. Like in Down Syndrome there is an extra chromosome 26.
What diseases are found in chromosomes?
* Down Syndrome -- an extra 21st chromosome* Angelman Syndrome -- an absence of chromosome #15 in the brain* Fragile X Syndrome -- a deficiency in one of the x chromosomes* Rett Syndrome -- deletion of an entire x chromosome (mainly strikes females)* Patau Syndrome -- tripling of chromosome #13 (infants appear mutilated)
Purpose of a telomere?
A telomere is the structure at each end of a chromosome. It consists of an area of highly repeated DNA combined with protein. Its main function is to protect the end of the chromosome.Telomeres are instrumental in enabling the cells to divide and replicate. But as we grow older these tips wear out and shorten much like the shoelace caps. When they get too short, we get diseases and die. The three Nobel Prize winners found this as they were looking for a cure for cancer.
How can you increase your awareness of hereditary diseases?
By researchiing and looking for information about them. There are many references that can help at the same time there are experts that can answer your questions.
What kinds of diseases can you get from having too many chromosomes?
Something called nondisjunction can cause too many chromosomes. Most result in the death of the fetus.
What are the causes of heredity diseases?
The causes of a hereditary disease is a missing chromosome, and extra chromosome. Like in Down Syndrome there is an extra chromosome 26.
What are genetic diseases caused by?
Genetic diseases are malfunctions in the chromosomes, genes, DNA, cell development or natural hereditary of mutated genes.
Describe a normal karyotype and a abnormal karyotype?
A normal karyotype will show all 23 chromosomes at normal growth, and the end will show an either XY (boy) or XX (girl). Karyotypes of people with autosomal diseases and other diseases associated with chromosomes will show abnormalities on that certain chromosome. For example, Down syndrome is caused by a whole extra chromosome on chromosome 21. This extra chromosome can be seen on the karyotype.
Why are the majority of genes listed for chromosomes 11 and the other chromosomes associated with diseases?
The reason is that most of the genetic conditions are related to changes in particular genes on chromosome 11.
Why are sex chromosome abnormalities more common?
Sex chromosome abnormalities are far more common than abnormalities of the other 44 chromosomes (the autosomes) because they rarely produce deadly diseases.
What are the types of hereditary diseases?
The most common class of hereditary diseases are the Mendelian diseases (since they follow the Mendelian patterns of inheritance), they're classified into 3 types: * Dominant; where if one allele is defected, the symptoms of the disease manifest since it is dominant, e.g. Marfan syndrome * Recessive; where both alleles need to be defected for the disease to manifest, e.g. Phenylketonuria * Sex-linked; where the allele is present on the X chromosome, but not on the Y chromosome, making males more susceptible to have the disease, e.g. color blindness. Alleles are copies of the same gene present on each of a pair of chromosomes, one allele comes from the mother and one comes from the father. However, recently, most hereditary diseases are classified according to the type of protein involved, whether structural, enzymatic, transport protein, ...etc.
Are hereditary diseases and genetic diseases the same?
Yes, they are the same thing.
Why do genetics perform karyotype?
Most Probably because for studying the chromosomes. Determining the structure of chromosomes, number of chromosomes, haplontic or diplontic nature, and most importantly to determine the genetic diseases like Down's syndrome in which the chromosome number is 47 while the normal human beings have 46 chromosomes i.e. 23 pairs.
What is hereditary ataxia?
One of a group of hereditary degenerative diseases of the spinal cord or cerebellum. These diseases cause tremor, spasm, and wasting of muscle.
Are there characteristic attached to the sex chromosomes other than gender?
Genetic diseases are often carried on the X chromosome. For example, hemophilia or colorblindness. Also, there are genes needed for the development of a fetus on the X chromosome. Scientists don't know their location, but they do know that a baby cannot be born without an X chromosome.
What are the causes of hereditary diseases?
Genetic mutations passed from parent to child cause hereditary disease.
How are noninfectious diseases caused?
Non infectious diseases are spread by the environment, bad nutrition, genetic inheritance, and hereditary diseases.
