Without enough thyroid hormone, metabolism slows, making weight gain more likely. Even a thyroid functioning at the lower end of the normal range might cause weight gain. Treating hypothyroidism with medication may reverse some of the weight gain. If you have any concerns, seek medical advice.
1 Allele: a different version of a gene. 2  Dominant: a trait that is visible and can cover up other traits when there is more than one present. 3  Genotype: the genetic makeup of an organism, or the versions of a gene that an organism has. 4  Heterozygous: having two different versions of a gene.
He concluded the variation must be due to environmental factors and coined the terms â genotype â and â phenotype â in 1911. Genotype is the genetic make-up of an individual organism. Your genotype functions as a set of instructions for the growth and development of your body.The word âgenotypeâ is usually used when talking about the genetics of a particular trait (like eye colour).Phenotype is the observable physical or biochemical characteristics of an individual organism, determined by both genetic make-up and environmental influences, for example, height, weight and skin colour.e concluded the variation must be due to environmental factors and coined the terms â genotype â and â phenotype â in 1911. Genotype is the genetic make-up of an individual organism. Your genotype functions as a set of instructions for the growth and development of your body.