1. ENVIRONMENT MAKES A
DIFFERENCE
• Information inherited from parents
affects almost all of our features (the
way we look).
• However our environment makes a
difference as most features we have
can be linked or traced to the
environment we live in.

2. MAKING THE DIFFERENCE – IS IT
PARENTS OR THE ENVIRONMENT?
Parents making the
difference
Environment making the
difference
Height (Tall or Short) Darker skin (more time in the sun)
Natural Eye colour Fat, skinny or slim
Natural Hair colour Artificial eye colour
Skin colour Artificial hair colour
YOUR TASK: Suggest three more examples for each
column in the table. Your teacher will tell you if they
are correct or not. WELL DONE

3. HUMAN INFORMATION
BANK
What is human information bank all about?
Information about you and me is secretly stored somewhere in the human bank.
Bank designed biologically by nature to
Information about your
• Skin colour
• Hair colour
• Height
• Finger length
• Size or weight
• Finger print
IS THE SAFEST BANK YOU CAN EVER
IMAGINE – TRUE OR FALSE?

4. ARE YOU A LIVING
ORGANISM?
This question was used as a starter in one of my
lessons. The response? Shockingly unbelievable
Yes were asked to move to the right hand side
of the class. 85 % was YES
No were asked to move to the left hand side of
the class. 15 % was NO
What NEXT?
I asked the following questions
Do you eat?
Have you seen any observable
difference in your height 4 ago
and now ?

5. Do you respond to changes within
and around you?
Do you toilet? Do you move from
place to place?
At this point just one student was left on the
other side of the class.
THEN……..

6. MRS GREN - RECAPPED
Living organisms are plants and animals.
Before we can call something a living
organism it must be able to meet 7
special criteria. Some people use the
word MRS GREN to help them
remember the 7 characteristics

7. A HOUSE INSIDE A HOUSE - CELLS
We as living organisms are made up of
cells - except for germs like viruses
and bacteria, just about every other
living thing on Earth is made of cells.
This is probably why cells are called
the building blocks of life.

8. CELLS AND TYPES
Some human somatic cells are frequently
renewed or replaced by new ones.
Other cells are rarely duplicated.
Examples of Cells
Hair cells, skin cells, and finger nails cells
are replaced constantly and at a very
rapid rate throughout our live time.

9. CELLS – ARE THEY SPECIAL
Cells work to keep us healthy and alive – as soon as they
wear out the are replaced by new one. This is most
noticeable with our skin.
WHAT IS IN YOUR CELL?
• Your cell is made up of nucleus
• Inside the nucleus are threadlike
structures called chromosomes
• Inside the chromosomes are
thousands of genes.

10. Match cell types with their purpose
Type of cell
stomach cells carrying oxygen round our body
bone cells Thinking faculty and processes
muscle Helps to shape to our body
brain cells contracting to move body parts
blood cells Helping to digest the food we
eat
Purpose of cell
YOUR TASK: To re-arrange the above

11. Is the Human information Bank?
The GENES
The gene is the safe deposit box.
It is the control centre and controls
things like how we develop
• Our eye colour, Height, weight or
size, skin colour, hair colour,
dimples, finger length…. etc

12. QUICK TASK (2
MINUTES)
Summary of cell parts
1. Write the following cell parts in order
starting with the smallest
Gene, nucleus, chromosomes, cell
2. Explain how the genes control what
the cell does from time to time.

13. THREADLIKE STRUCTURES -
CHROMOSOMES
What are chromosomes?
Chromosomes are the packaging for our bodies
genetic material (known as DNA =
deoxyribonucleic acid).
DNA carries a specific code that gives
instructions to our body on how to grow,
develop and function.
These instructions are organized into units
called genes.

14. ALLELES – A FRIEND YOU
SHOULD KNOW
Most of the features we have are affected by more than
one gene.
What are ALLELES?
Alternative forms of a genetic
characteristic.
One of two or more alternative forms of a gene
in a chromosome, caused by a difference in the
sequence of DNA.

15. THE HUMAN LOTTERY
This is best explained with examples.
A gene which controls eye colour in humans may have
two alternative forms – an allele that can produce blue
eyes, and an allele that produces brown eyes.

16. THE HUMAN LOTTERY PART 2

17. YOUR TASK STAYING WITH THE ALLES
Use the diagram above to work out the chances
of you having a BROWN or BLUE eyes

18. YOUR TASK STAYING WITH THE ALLES
Use the diagram below to work out the chances
of Michael inheriting Huntington’s disorder

19. YOUR TASK STAYING WITH THE ALLES
Use the diagram below to work out the chances
of Michael inheriting Cystic Fibrosis disorder

20. CYSTIC FIBROSIS
1. Can you catch cystic fibrosis (CF)?
2. Is it a genetic disorder?
3. What is a genetic disorder?
4. How examples of genetic disorder
can you list in your science book?
5. Most people with CF can’t have
children- why?
6. How come babies with CF are
usually born to healthy parents?

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