A translocation occurs when a piece of one chromosome breaks off and attaches to another chromosome. This type of rearrangement is described as balanced if no genetic material is gained or lost in the cell. If there is a gain or loss of genetic material, the translocation is described as unbalanced .
What causes translocation of chromosomes?
A translocation is a type of abnormal change in the structure of a chromosome that occurs when a part of one chromosome breaks off and sticks to another chromosome. These “mutations” are an important cause of many types of lymphomas and leukemias.
What is an example of translocation?
Examples of these translocations include the activation of the MYC oncogene by the t(8;14) translocation in Burkitt’s lymphoma and of the gene by a t(1;14) translocation or a SIL gene translocation on chromosome 1p32 in T-ALL. Most of the chromosomal translocations observed in T-ALL are of this type.
What are the three types of translocation?
1. simple translocations (one break involved) 2. reciprocal translocations (two breaks involved) 3. shift type translocations (three breaks involved) 4.
What is translocation explain?
(TRANZ-loh-KAY-shun) A genetic change in which a piece of one chromosome breaks off and attaches to another chromosome. Sometimes pieces from two different chromosomes will trade places with each other.
What is translocation in photosynthesis?
Photosynthesis produces glucose in the green parts of plants, which are often leaves. This is then converted into sucrose. The sucrose is transported around the plant in phloem vessels. The movement of sucrose and other substances like amino acids around a plant is called translocation . …
What is a DNA translocation?
Translocation Translocation is a type of chromosomal abnormality in which a chromosome breaks and a portion of it reattaches to a different chromosome. Chromosomal translocations can be detected by analyzing karyotypes of the affected cells.
Are translocations inherited?
A translocation is either inherited from a parent or happens around the time of conception. A translocation cannot be corrected – it is present for life. A translocation is not something that can be ‘caught’ from other people. Therefore a translocation carrier can still be a blood donor, for example.
What is translocation in cell biology?
Translocation is a type of chromosomal abnormality in which a chromosome breaks and a portion of it reattaches to a different chromosome. Chromosomal translocations can be detected by analyzing karyotypes of the affected cells.
What is the best definition of translocation?
What is translocation in DNA?
Listen to pronunciation. (TRANZ-loh-KAY-shun) A genetic change in which a piece of one chromosome breaks off and attaches to another chromosome. Sometimes pieces from two different chromosomes will trade places with each other.
What does translocation cause?
Chromosomes are structures that carry genes, our units of heredity. When this type of translocation occurs, it can cause flaws in chromosomes. In another type of translocation, two chromosomes trade pieces with each other. Genetic translocations can cause serious disorders, including a type of leukemia.
What is meant by translocation?
Translocation The transfer of one part of a chromosome to another chromosome during cell division. A balanced translocation occurs when pieces from two different chromosomes exchange places without loss or gain of any chromosome material. An unbalanced translocation involves the unequal loss or gain of genetic information between two chromosomes.
How many chromosomes are in a chromosome?
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes , look the same in both males and females.
What is a balanced translocation?
What Balanced Translocation Means. In a balanced translocation, a person usually has all the genetic material necessary for normal growth — a piece of a chromosome is merely broken off and attached to another one.
What is inversion of chromosome?
See additional information. Chromosome inversion: A condition in which a chromosome segment is clipped out, turned upside down, and reinserted back into the chromosome. A chromosome inversion can be inherited from one or both parents, or it may be a mutation that appears in a child whose family has no history of chromosome inversion.
