Manus (anatomy) The manus (Latin for hand) is the zoological term for the distal portion of the fore limb of an animal. In tetrapods, it is the part of the pentadactyl limb that includes the metacarpals and digits (phalanges). During evolution, it has taken many forms and served a variety of functions.
A cross between parents that differ in one trait is called monohybrid cross.
Bilateral cross cousin marriage begins with an initial situation of exchange marriage. Two men marry each other's sisters to establish a basis for a long term alliance. Marriages in Initial Generation. Note that marriage is indicated by lines joining couples from below and not by equal signs. The cross cousin marriage rule is applied in the next generation. Ego is expected to marry his bilateral cross cousin, who is at the same time both his mother's brother's daughter and father's sister's daughter, because of the intermarriage between sets of parents.