Hereditary Lesson 1 - Activity 1.1 Answer

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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