What is translocation in cytogenetics?
Translocation A translocation, as related to genetics, occurs when a chromosome breaks and the (typically two) fragmented pieces re-attach to different chromosomes. The detection of chromosomal translocations can be important for the diagnosis of certain genetic diseases and disorders.
What are the types of translocation in plants?
Such translocations have been extensively studied in various plant and animal species….Types of Translocation:
- Intra-chromosomal (internal) translocation or shift:
- Inter-Chromosomal translocation:
- Simple translocation:
What is plant translocation?
Translocation is the movement of sugar produced in photosynthesis to all other parts of the plant for respiration and the other processes described above. This occurs in phloem cells.
What are the two types of translocation?
There are two main types of translocations: reciprocal and Robertsonian. In a reciprocal translocation, two different chromosomes have exchanged segments with each other. In a Robertsonian translocation, an entire chromosome attaches to another at the centromere.
What is the meaning of translocation in plants?
Definition of translocation : the act, process, or an instance of changing location or position: such as. a : the conduction of soluble material (such as metabolic products) from one part of a plant to another.
How many types of translocations are there?
two main
There are two main types of translocations: reciprocal and Robertsonian. In a reciprocal translocation, two different chromosomes have exchanged segments with each other. In a Robertsonian translocation, an entire chromosome attaches to another at the centromere.
What is translocation in plants a level biology?
Translocation is the movement of dissolved substances, such as sucrose and amino acids, from parts of the plant where the substances are made to other parts of the plant where they’re needed.
What are the steps for translocation?
Steps in the translocation process
- Idea. Get familiar with your idea for a translocation, and with what’s involved in moving native plants and animals.
- Feedback.
- Prepare proposal and plan.
- Transfer and release.
- Manage, monitor, report.
What is a translocation in biology?
(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 another name of translocation?
A change of house or business premises. move. relocation. posting. removal.
What is a cytogenetic map in microbiology?
This cytogenetic map shows where a gene or marker lies relative to the stained bands ( Fig. 8.9 ). Cytogenetic maps are very low resolution compared with the other mapping techniques, yet they are useful to compare gene locations on a large scale.
What are the two types of cytogenetics?
The method of cytogenetics is divided into two broader categories: The constitutional cytogenetic includes the study of different genetic conditions (except cancer). Constitutional cytogenetics helps in the diagnosis of structural and numerical chromosomal abnormalities, inherited genetic abnormalities, fetal loss and pregnancy-related issues.
What is the difference between classical cytogenetics and molecular cytogenetic testing?
Classical cytogenetics allows microscopic visualization of whole chromosomes in order to assess their number and structure. Molecular cytogenetics uses specialized techniques such as fluorescence in situ hybridization (FISH) and array comparative genomic hybridization (aCGH) to evaluate submicroscopic chromosomal regions.
How is cytogenetics used to investigate chromosomal abnormalities?
Both classical and molecular cytogenetic techniques are used to investigate constitutional and acquired chromosome abnormalities. Most recently, next-generation sequencing has been added to the cytogenetic lab arsenal, to allow exact identification of breakpoints in chromosome rearrangements.