visszavetéses

visszavetéses is a Hungarian term that translates to "recessive" in English, most commonly used in genetics. It refers to a gene or allele that expresses its trait only when two copies of it are present, or when the dominant allele is absent. In simpler terms, a recessive trait is masked by a dominant trait if an individual inherits both a dominant and a recessive allele for a particular gene. The recessive trait will only be observable if the individual inherits two copies of the recessive allele.

For example, in pea plants, the allele for wrinkled seeds is recessive to the allele for smooth seeds. A pea plant will only have wrinkled seeds if it inherits two copies of the wrinkled seed allele. If it inherits one allele for smooth seeds and one for wrinkled seeds, it will have smooth seeds because the smooth seed allele is dominant. The same principles apply to human genetics, where many traits, such as certain forms of color blindness or cystic fibrosis, are inherited in a recessive manner. Understanding recessive inheritance is crucial for genetic counseling and predicting the likelihood of certain genetic conditions appearing in offspring.