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
- Hormone
- A chemical messenger, secreted directly into the blood by an endocrine gland, that travels to target cells and alters their activity.
- Homeobox gene
- A gene containing a highly conserved 180-base sequence, the homeobox, that codes for a DNA-binding domain controlling the expression of other genes involved in development and body plan.
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 OCR A-level Biology topics