Variability Non-hereditary

Variability is not hereditary

Non-hereditary variability is changes in the phenotype of an organism that are not inherited. These changes can be caused by various environmental factors such as temperature, humidity, light, nutrition, etc. Such changes are called modification variability.

Modifying variability manifests itself in the form of phenotypic changes that occur under the influence of environmental conditions. These changes are not inherited, but can persist in subsequent generations if the conditions that caused the modification persist.

One example of modification variability is the change in flower color in plants. If the plant is grown in a dark place, then its flowers become dark, and if in the light, they become light. This is because in dark conditions the plant produces more anthocyanins, the pigments that give the flower its dark color. In bright conditions, on the contrary, less anthocyanins are produced, which leads to the appearance of light-colored flowers.

Another example of modification variability is the change in the shape of leaves in plants when environmental conditions change. If a plant grows in dry soil, its leaves become stiffer and flatter to reduce water evaporation. If the plant is growing in moist soil, the leaves will be softer and rounder to increase the surface area for water absorption.

In general, modification variability is an important mechanism for the adaptation of organisms to environmental conditions. It allows plants and animals to adapt to changing conditions and survive in different climates.