translocation
/,trænslou'keiʃn/
Học thuậtThân thiện
Definition
- Noun:
- (Genetics): An exchange of chromosome parts between non-homologous chromosomes. This is a type of chromosomal rearrangement.
- (Biology): The transport of dissolved material (such as sugars) within a plant, typically through the phloem.
Examples of Usage
- Noun (Genetics):
- A chromosomal translocation was identified as the cause of the genetic disorder.
- Reciprocal translocations involve a two-way exchange of genetic material.
- Noun (Biology):
- The translocation of sugars from leaves to roots is a vital plant process.
- Scientists studied the mechanism of nutrient translocation in the phloem.
Advanced Usage
- "Balanced translocation": A translocation where no genetic material is lost; the individual is typically a carrier but may not show symptoms.
- A parent with a balanced translocation can pass an unbalanced form to their child.
- "Phloem translocation": Specifically refers to the movement of organic nutrients in plants.
- Phloem translocation is driven by osmotic pressure gradients.
Variants and Related Words
- Translocate (verb): To move or transfer from one place to another.
- The protein is translocated across the membrane.
- Translocator (noun): An agent or structure that facilitates translocation.
- The ATP-binding cassette protein acts as a translocator.
Synonyms
- Rearrangement (Genetics): A general term for changes in chromosome structure.
- Transport (Biology): The general movement of substances.
Related Phrases
- Robertsonian translocation: A specific type of translocation where two acrocentric chromosomes fuse at the centromere.
- Robertsonian translocation is a common cause of Down syndrome.
- Translocation breakpoint: The specific site on a chromosome where the break and exchange occur.
- The gene was disrupted at the translocation breakpoint.
Noun
- (genetics) an exchange of chromosome parts
- translocations can result in serious congenital disorders
- the transport of dissolved material within a plant