Heredity refers to the passing of traits from parents to offspring. Traits include physical characteristics like eye color, hair type, height, and skin color as well as characteristics in other animals like fur type and skin color in plants like fruit color and shape. These inherited traits are determined by genes from the parents, while non-inherited traits result from environmental interactions and include learned behaviors, skills, and preferences.

1. Heredity
“Why We Look the Way We Do”

2. What is Heredity?
• Heredity = the passing on of
traits from one generation to
the next.

3. What is a Trait?
A trait is a specific characteristic
that is unique.
Traits affect the way we look
Traits affect how our bodies
function
Traits are inherited
• Examples are hair color, eye color,,
etc.

4. What characteristics are Passed on
From Parents to Their Young?
• In Human
- The type of earlobe

5. - Height

6. -Hair type

7. -Eye colour
-Eye colour

8. -Skin colour

9. -Type of eyelid

10. -Presence of dimples

11. • In Other Animal
• Skin colour
• Fur type

12. •In Plants
Like animal, plants pass on some of their
characteristics to their young when they
reproduce.
- colour of the fruit, flower and leaf
- shape of the fruit, flower and leaf
- size of the fruit, flower and leaf
- taste of the fruit

13. What characteristics are Not
Passed on From Parents to Their
Young?
As a living things interact with their
environment, they may develop certain
characteristics to adapt to the
environment.
Characteristics that develop as a result of
interaction with the environment are non-
inherited characteristics

14. Some non-inherited
characteristics are:
• Likes and dislikes
• Learned behaviour
• Abilities or skills