Despite of blood components are constant in all humans , but they differ in blood groups, Scientists classify blood groups into four groups which are: A, B, AB and O, The 14th day of June...
Mendelian characteristics are complete dominance characteristics , The factor ( gene ) of dominant character dominates over the factor of recessive one and completely obscures its effect , as the flower colour , seeds...
The dominant trait is the trait that appears in all the individuals of the first generation, The recessive trait is the trait that disappears completely in the individuals of the first generation.