Friday, March 27, 2009

ACTIVITY (Dominant trait Vs Recessive trait)

ACTIVITY: Observing and identifying dominant and recessive traits among human being.

METHOD:

1.Students formed four groups in the class.

2.The following traits among group members are observed.

a) The ability to roll the tongue
b) The type of ear lobes
c) The types of hair
d) Being right-handed or left-handed

3.The numbers of students who have particular traits are recorded.

4.The results are tabulated.


RESULTS:


DISCUSSION:

There are _______ people who can roll their tongue than those who cannot.
There are _______ people with free ear lobes than those who have attached ear lobes.
There are _______ people with curly hair than those with straight hair.
There are _______ right-handed people than left-handed people.


CONCLUSION:
____________ traits are more common in comparison with ____________ traits.

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