Traits that are determined by a single gene are of five main types: y-linked, x-linked dominant, x-linked recessive, autosomal dominant, and autosomal recessive. how many of these modes of inheritance are possible for this pedigree? assume the gene is completely penetrant, and there is no new mutations.

For the Y-linked gene, there is only one mode of inheritance. For X-linked dominant and recessive genes, there are two modes of inheritance. For the autosomal dominant and recessive, it depends on the origin of the genes. For homozygous dominant and homozygous recessive parents, there is only one mode of inheritance.

Gases enter the atmosphere and trap the sun's heat warning the earth.