BRAINCAKERegulatory Genes
When an organisms is under stress the organs's homeostatic balance is upset. Factors in the organism's internal or external environment such as temperature and light intensity can influence a set of genes called regulatory genes by the release of hormones and growth factors which could then influence the growth and development of the organism.
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Key terms in this lesson
- Hox gene
- A homeobox gene found only in animals, organised in clusters, that determines the identity and position of body segments along the anterior-posterior axis.
- hormone
- A chemical messenger, secreted by an endocrine gland directly into the blood, that travels to target cells bearing complementary receptors and brings about a response.
More in Genetics and Variation
- Post-translational Control
- Homeobox Genes
- Body Plans
- Apoptosis
- Variation
- Body Mass
- Genetic Variation
- Continuous and Discontinuous Variation
All 36 lessons in Genetics and Variation · All AQA A-level Biology topics