Predicting Human Traits Use the information in the table above to predict offspring traits in the chart below. The first example is done for you.
Mother Father Offspring Dominant / Recessive
1. Normal eyesight Nearsighted
2. Straight hair Straight hair
3. Freckles Freckles
4. Long lashes Short lashes
5. No dimples Dimples
6. Detached lobes Detached lobes
7. blue eyes Brown eyes
8. Widow's peak Straight hairline
Mother Father Offspring Dominant / Recessive
1. Normal eyesight Nearsighted
2. Straight hair Straight hair
3. Freckles Freckles
4. Long lashes Short lashes
5. No dimples Dimples
6. Detached lobes Detached lobes
7. blue eyes Brown eyes
8. Widow's peak Straight hairline
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Answer:
Mother: Normal eyesight
Father: Nearsighted
Offspring: Half (50%) of the offspring are predicted to have normal eyesight, and the other half (50%) are predicted to be nearsighted.
Mother: Straight hair
Father: Straight hair
Offspring: All offspring are predicted to have straight hair.
Mother: Freckles
Father: Freckles
Offspring: All offspring are predicted to have freckles.
Mother: Long lashes
Father: Short lashes
Offspring: All offspring are predicted to have long lashes because the dominant trait (long lashes) overrides the recessive trait (short lashes).
Mother: No dimples
Father: Dimples
Offspring: All offspring are predicted to not have dimples because the dominant trait (no dimples) overrides the recessive trait (dimples).
Mother: Detached lobes
Father: Detached lobes
Offspring: All offspring are predicted to have detached earlobes.
Mother: Blue eyes
Father: Brown eyes
Offspring: All offspring are predicted to have brown eyes because the dominant trait (brown) overrides the recessive trait (blue).
Mother: Widow's peak
Father: Straight hairline
Offspring: Half (50%) of the offspring are predicted to have a widow's peak, and the other half (50%) is predicted to have a straight hairline.