WordGarden.ioallelic
C2Pronunciation
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US
- /əˈlɛlɪk/
Meanings
Adjective
relating to alleles or alternative forms of a gene
Beyond the definition
Imagine building with LEGO bricks. You have different-colored bricks—red, blue, green. These are like alleles! An allele is simply a specific version of a gene. "Allelic" describes anything relating to these different versions. So, if scientists talk about "allelic diversity" in a population, they're talking about how many different forms of a particular gene exist within that group. It's most often used in the context of genetics and inheritance—understanding why you might have blue eyes while your sibling has brown ones!
Think of it like this: when scientists discuss eye color, they might determine that a trait is the result of specific "allelic combinations." This means the final eye color depends on which alleles each parent contributed. It's a specialized term, so you'll mostly encounter it in biology classes or scientific articles.
The word "allelic" comes from the world of genetics and specifically refers to alleles. Now, what are alleles? Think of genes as instructions for building and operating your body—things like eye color, hair texture, or even a predisposition to certain traits or conditions. But these instructions aren't always set in stone! Alleles are different versions of those same instructions.
More precisely, alleles are different versions of the same gene found at the same position (called a locus) on a chromosome. Two alleles can be identical, or they can differ in DNA sequence, and those differences can sometimes lead to different outcomes in a trait.
For example, a gene might control flower color. One allele could code for purple flowers, while another codes for white flowers. A plant inherits one allele from each parent. If it gets two identical alleles (like purple/purple), it is homozygous for that trait. If it gets different alleles (like purple/white), it's heterozygous.
"Allelic" is an adjective used to describe anything related to these variations. You might hear about "allele frequencies" (also called "allelic frequencies")—how common each allele is in a population. Or, scientists might study "allelic association"—whether certain alleles tend to occur together. Understanding allelic variation is crucial for understanding evolution, disease susceptibility, and the diversity of life on Earth.
It's not a word you'd use in everyday conversation, but if you're reading about genetics, inheritance, or population biology, "allelic" will likely pop up! It signifies that the discussion revolves around the different forms a gene can take and how those differences contribute to variation within a species.
Examples
- 1
Genetic variation
The study focused on allelic variation in a gene linked to eye color.
- 2
Medical risk
Doctors can test for allelic variants that increase the risk of certain inherited diseases.
- 3
Same gene
Later work showed that the two mutations were allelic to each other, not changes in separate genes.
- Patternallelic to each other
affecting the same gene
See also
Forms and spellings
1 form open this card.
Main spelling
- allelicadjective