Question

What is the likelihood that the children in square 1 will have earlobes that are not attached?

Answer 1

Explanation:

Alice's Parents are of a few possibilities...

Alice can have a heterozygous mother and father.

E       e

E e

Probability of ear lobe being attached : 1/4

Probability of ear lobe not being attached : 3/4

Alice can have Homozygous dominant parent and a Heterozygous recessive PARENT.

E       e

 ee

Probability of ear lobe being attached : 2/4= 1/2

Probability of ear lobe being attached : 2/4=1/2

If Tom is heterozygous then , and alice is homozygous recessive(ee)

     E       e

 ee

Here two children dont have attached ear lobes (the left side Both).

Possibility : 2/4

=1/2

Probability of ear lobe being attached : 1/2

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Answer 2

Answer: 12x12=144

Explanation: you just have to add and multiply js here for points