In humans, attached earlobes are recessive to free earlobes. A king who attached
ID: 10443 • Letter: I
Question
In humans, attached earlobes are recessive to free earlobes. A king who attached earlobes has two wives. Wife 1 attached earlobes and wife 3 has free earlobes; both wives have babies at the same time. The hospital burns down; both wives and babies are saved but all records are lost, and nobody knows which baby belongs to which wife. Baby A has attached earlobes and Baby B has free earlobes. Match the babies with the wives. The next year the wives have babies again, and again the hospital burns. This time both babies have free earlobes. Which wife is in danger of losing her head:. Show all Punnett SquaresExplanation / Answer
Free earlobes is dominant----------------F
attached is recessive.-------------------f
Wife 1 attached earlobes--------- genotype ---------ff
wife 2 has free earlobes------------genotype ------------Ff,FF
A king who attached earlobes--------------- genotype ---------ff
==============
KING ff x ff Wife 1
gametes
f
f
f
ff
ff
f
ff
ff
ALL OFFSPRINGS ARE attached EAR LOBES
========================
KING ff x Ff Wife 2
gametes
F
f
f
Ff
ff
f
Ff
ff
HALF OFFSPRINGS ARE attached EAR LOBES
HALF OFFSPRINGS ARE FREE EAR LOBES
==========================
KING ff x FF Wife 2
gametes
F
F
f
Ff
Ff
f
Ff
Ff
ALL OFFSPRINGS ARE FREE EAR LOBES
Baby A has attached earlobes –WIFE 1
and Baby B has free earlobes.-------------WIFE 2
gametes
f
f
f
ff
ff
f
ff
ff