Dictionary > Hox gene

Hox gene

Definition
noun, plural: Hox genes
Any of the developmental control genes involved in establishing the anteriorposterior axis and the identity of each body segment in organisms, especially during early embryonic development.
Supplement
The first hox gene was discovered in Drosophila. Mutation in this gene leads to the formation of a normal structure or organ in place of another at an abnormal site. For instance, mutation in antennapedia hox gene of Drosophila leads to the formation of leg in place of antenna from its head.
Eventually, other hox genes were identified in other organisms, such as in reptiles, vertebrates and plants. The first vertebrate hox gene was isolated in Xenopus by Eddy De Robertis and colleagues in 1984. In plants, one of the well known homeotic genes is the MADS-box genes.
Synonym: homeotic gene


You will also like...

Growth Patterns
Growth Patterns

This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..

Freshwater aquatic plankton
Freshwater Communities & Plankton

Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..

Genetics – Lesson Outline & Worksheets
Genetics – Lesson Outline & Worksheets

  Topics Modules Quizzes/Worksheets Description Introduction to Genetics Genetics – Definition: Heredity and ..

Early Mammals on Earth
Early Mammals on Earth

The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..

The Human Physiology
The Human Physiology

Physiology is the study of how living organisms function. Thus, human physiology deals specifically with the physiologic..

Ecological Research Measuring & Analysis
Ecological Research: Measuring & Analysis

This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..