1. WHERE DID YOU GET YOUR GENES??
LABEL THESE!
VARIATION (D________ between us)
I_____________ factors are caused by your GENES. E.g.__________________
E___________ factors are caused by your surroundings and how you live your life. E.g.__________________
You & Your
Genes 1
D = dimples
d = no dimples
Which is dominant? _____________
How do you know? ______________
Does this person have dimples? ______
The genotype is _________
What is the genotype of someone with no dimples? ___________
The ‘no-dimple’ gene is r__________ D d
Inheritance means ________
WHERE DID YOU GET YOUR GENES?? +
From your ____
SEX CHROMOSOMES
XX = _______
XY = _______
From your ____
Put a round the Dad
Put a round a letter that represents an egg
Fill in the chart
There is a ____% chance the baby will be a girl.
Which parent determines the baby’s sex?
The fertilised egg will become an e_______, then a f_______, and eventually, a b______. YOU! X Y
Fertilised egg
Put the number of chromosomes in the boxes.

2. Gene therapy can be used to cure some ________
Gene therapy can be used to cure some ________. It is still in the early stages of development.
GENETIC DISEASES
are caused by f_______ genes.
Examples:
__________ ___________
Symptoms: thick, sticky _______
Affects: _______ & __________ systems
2. ________________ Disorder
Symptoms: loss of co-ordination and memory
Affects: __________ system
HEALTHY GENE
Make lots of ________ f F F F F
Put into ______ of patient F F F
Patient’s cells reproduce – with healthy gene!
You & Your
Genes 2 F F F F
What is Embryo Selection?
Some of the ‘left-over’ embryos are
used to make STEM CELLS.
What are stem cells?
Why are they useful?
Inheritance of CF
There are two versions
(a______) of the CF gene.
The faulty one is RECESSIVE.
A CF sufferer has FF/Ff/ff alleles (Circle the correct answer). F f