Name:
Class:
Date:
Activity 1.1 What did I inherit? Process skills Observing Comparing Communicating Inferring
: : : :
the characteristics of your parents/family members and yourself your findings the similarities and differences in physical features the similarities and differences in your findings
Aim: To find out what characteristics I inherited from each of my parents/ family members
1.
Study the facial features of the members in the following family.
Parents:
Father
Mother
Children:
May
Sue
Joe
Jim
Sue and Jim (a) (i) Which children have curly hair? (ii) Which parent did these children inherit their curly hair from?
Father
From parents to young
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May and Jim
(b) (i) Which children have fair complexion?
(ii) Which parent did these children inherit their fair complexion from? Joe
(c) (i) Which child has detached ear lobes?
Mother
(ii) Which parent does the child inherit his/her detached ear lobe from?
Father
(d) (i) Which children have thin lips?
May, Joe and Jim Mother
(ii) Which parent did these children inherit their thin lips from?
2. Ear lobes and tongue rolling
The photographs below show some characteristics that can be inherited.
father’s attached ear lobe
able to roll tongue
mother’s detached ear lobe
unable to roll tongue
Observe your parents or other members of your family. Indicate with a (✔ ) in the table below who in your family has the following characteristics. Characteristics Family member
Attached ear lobes
Detached ear lobes
Father/Uncle Mother/Auntie Brother/Sister (Accept comparison with other family members.)
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Chapter 1
Able to roll tongue
Unable to roll tongue
3. Uniquely different
In the space provided below, use a stamp pad and obtain thumbprints of three members of your family. Label the owner of each thumbprint.
My thumbprint
Family member one
Family member two
Family member three
No
Is your thumbprint similar to any members of your family?
Conclusion inherit
Children
characteristics from their parents. Examples of such roll tongue
hereditary characteristics are the ability to ear lobe
.
Thumbprints
and the type of
are unique characteristics.
Fill in the blanks with the correct answers. Characteristics are
Inherited
by living things such as
Animals / Humans examples
• Colour of eyes • Colour of skin • Colour of hair • Type of ear lobe • Tongue rolling • Dimples
by living things such as
Plants examples
• Thumbprints • Pattern in the iris of our eyes
• Colour of fruits • Colour of flowers • Presence of seeds • Taste of fruits • Shape of flowers • Size of flowers
• Shape of fruits • Size of fruits
From parents to young
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