Examine the back side (dorsal surface) of your fingers and locate the mid-digita

Question

Examine the back side (dorsal surface) of your fingers and locate the mid-digital are between the two central joints. Look very carefully and discover if you possess a few hairs in the mid-digital region on any of your fingers.

Henry possesses mid-digital hairs, but his wife does not. Of their six children, three have mid-digital hairs and three do not. One of Henry's daughters with mid-digital hair grows up and marries a man who also has mid-digital hairs. This couple has two children, none of whom have mid-digital hair. What is the most likely mode of inheritance of mid-digital hair?

Explanation / Answer

when its homozygote, mid-gidital hair, because dominant/resessive dont explain the second question. with punnet square: hh X hH: ---h---h h--hh hh H--Hh--Hh =50:50 where hh is mid-digital hair and Hh is not. the F1 generation Hh x Hh (b) ---h---H h-hh--Hh H Hh--HH where hh and HH is digital. Hh is not. It still can be, resessive/dominating (while being dominating) but the odds are agaist it. 6 and 2 are too little to make sertain hypothesis out of it.

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