Every living organism has an arrangement of chromosomes in its DNA. Sometimes, chromosomal mutations occur that cause changes in certain traits in the organism.
Chromosomal mutation is a process that causes chromosomal changes that lead to gene changes. These changes can only be identified through genetic analysis or microscopic examination. Chromosomal mutations are also known as chromosomal abnormalities or chromosomal abnormalities.
This is because chromosomal mutations cause changes in the structure of chromosomes and have the potential to cause genetic disorders. Types of chromosomal mutations There are two types of chromosomal mutations, namely chromosome I mutations and chromosome II mutations.
Types of chromosomal mutations
There are two types of chromosomal mutations, namely chromosome I mutations and chromosome II mutations.
Chromosome I . mutation
Chromosome I mutations are mutations that occur as a result of the process of inversion, deletion, duplication, or translocation. An inversion is a mutation that occurs when a chromosome segment is reversed from beginning to end. An example of an inversion mutation is the world’s tallest juvenile or an insect that is smaller than normal.
The deletion is a partial monosomy mutation. This case occurs when there is a missing or deleted chromosome. An example of a deletion is Cri-du-chat syndrome, a genetic disorder characterized by a very high-pitched baby voice like a cat’s voice. Then, this syndrome causes abnormalities in the heart and the shape of the face.
Duplication is another form of chromosomal mutation which is partial trisomy. As the name implies, this mutation indicates there is a duplicated segment. One form of chromosomal mutation called duplication is a change in the arrangement of the chromosomes. Translocation is when a segment of a chromosome breaks down and then moves to another place. One example of a translocation mutation is Down syndrome.
Chromosome II. mutation
Type II mutations are mutations that cause the number of chromosomes in the cell to change. Then there are two types of mutations of this type, namely aneuploid and polyploid. Aneuploidy is a chromosomal mutation that causes the loss or addition of chromosomes. An example of aneuploidy is Down syndrome. Polyploidy is the addition of two or one haploid chromosomes. An example is a gigantism.
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