All humans inherit a set of 23 chromosomes from their mother and another set of 23 from their father. Most of our genes are inherited in pairs, which means we get one copy of each gene from our father and mother. However, some genes are dominant or recessive, meaning that whether or not a characteristic is expressed depends on the alleles of mom and dad (respectively) . Here are some genes that are inherited from the father only:

• Y-linked traits: All men inherit a Y chromosome from their father, which means all traits that are only found on the Y chromosome come from dad, not mom. Y-linked traits follow a clear paternal lineage, and a mutation on the Y chromosome can only be passed from father to son.

• Gender: Fathers determine the gender of their offspring. Girls inherit an X chromosome from their father, resulting in a XX genotype, and males inherit a Y chromosome from their father, resulting in an XY genotype. Mothers only pass X chromosomes, so fathers are in total control of the gender.

• Mitochondrial DNA: Mitochondria are organelles in cells that produce energy, and they have their own DNA distinct from the nuclear DNA. We inherit mitochondrial DNA from our mothers only, so genetically, a person carries more of their mothers genes than their fathers.

Its important to note that while some traits may be more likely to come from the father due to the expression of dominant genes, physical characteristics and appearance as a whole are not heavily biased towards the fathers genes.