Science, asked by qazplmpratham, 2 months ago

B I O L O G Y , CLASS X

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Answered by janvisaini235

1

Explanation:

1. (i) Square represents male and circle represents female.

(ii) Solid symbols shows affected parents and hollow symbols shows normal parents.

2. In humans attached ear lobes are a dominant feature over free ear lobes while hypertrichosis feature.

3. Family A shows heterogeneous feature.

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