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.
The term âgenomeâ can also be applied to refer to specific genetic contents. For example, the total content of the nuclear DNA in a cell is called ânuclear genomeâ and the total DNA content in mitochondria is called âmitochondrial genomeâ.In addition, genome may also comprise of non-chromosomal genetic elements such as viruses, plasmids and transposable elements. Gene is a segment or a portion of DNA molecule while genome is the total DNA content in a cell. â¢ Genes code for proteins. Genome itself cannot code for proteins as it contains almost all the DNA. Since the gene is only a portion of a DNA molecule, that part is enough to code for proteins.