Year 9 B1 You and your Genes Name

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Learning Journey
GCSE
Target Grade
Year 9 B1 You and your Genes Name
Key words
Aim: ‘What will I be learning?’
You will be learning what key words such as gene, DNA, chromosome, inherited and variation mean.
You will be learning that characteristics can be caused by genes, the environment or both.
You will be learning what a clone is and how to clone plants and animals.
You will be learning how gender (sex) is determined in humans during fertilization.
You will be learning how a fetus can be tested for genetic disorders.
You will be learning that embryo screening may cause ethical dilemmas.
Gene
Fetus
Chromosome
Clone
Genetic testing
Cystic fibrosis
Huntington’s disorder
Asexual
Allele
Dominant
Recessive
Homozygous
Heterozygous
Amniocentesis
Genotype
Phenotype
Objectives: ‘How will I be learning?’
You will be learning by cloning your own cauliflower plants.
You will be learning by thinking and discussing ethics relating to genetic testing of fetuses.
You will be learning by researching the HFEA.
You will be learning by drawing punnet squares and calculating probabilities.
You will be learning by performing role plays about ethical issues.
You will be learning by modeling fertilization.
Literacy
Describe how to carry out
genetic testing.
Numeracy
Calculate and analyse risks of genetic
testing.
Discuss ethical arguments.
Calculate probability of inheriting
genetic disorders.
Date
Current Level
Teacher comment
December 2012
Date
Interim Grade
Date
Final Grade
Pupil comment
Lesson
The same and
different
1
*Bold = higher
tier only
Notes
The same but
different
2
Cloning 1
3
What makes
you the way
you are?
4
Male or
female
5
Inherited
disorders
A unique mix
of genes
Predicting
inheritance
Genetic
testing of
fetuses
9
Using genetic
testing
10
Can you
choose your
child?
11
Cloning 2
12
13
Explain how
embryos can be
selected by
genetic testing
before
implantation
(PGD).
Know that PGD
stands for PreImplantation
Genetic Diagnosis.
Give examples of
organisms that
reproduce
asexually to
produce clones.
Know that cloning
depends stem
cells.
Explain that
differences
between clones
can only be due
to the
environment.
Describe how
natural and
artificial clones
are produced.
Explain how stem
cells can be used
to treat some
illnesses.
6
7
8
Know what key
words e.g.
nucleus, gene,
chromosome,
DNA mean.
Give examples of
characteristics
caused by genes
or by the
environment.
Clone some
cauliflower
(practical)
Understand that
body cells have
46
chromosomes, in
23 pairs.
Remember that
males have XY
and females
have XX
chromosomes.
Know that
genetic disorders
can be caused by
dominant or
recessive alleles.
Understand that
an allele is a
different version
of a gene.
Know the
symptoms of
Cystic Fibrosis (CF).
Describe the
uses of genetic
testing for
screening of
fetuses.
Describe the uses of
genetic testing for
predictive testing for
genetic diseases.
Explain where
genes are found
and what their
function is.
Give examples of
characteristics
caused by both
genes and the
environment.
Understand how
to keep
conditions
sterile.
Understand that
sex cells have 23
single
chromosomes.
Play a game to
show how
gender is
inherited.
Understand what
homozygous and
heterozygous
alleles means.
Know that Cystic
Fibrosis (CF) is
caused by a
recessive faulty
allele.
Discuss the risks
and
implications of
genetic testing
of fetuses.
Discuss ethical issues
relating to testing
fetuses using ethical
arguments.
Know that
proteins can be
structural or
functional.
Give examples of
characteristics
caused by
several genes
working
together.
Describe how
clones are
formed by
asexual
reproduction
Explain how
chromosomes
pair up at
fertilization.
Draw a punnet
square to show
inheritance of
gender.
Know that
Huntington’s
disorder is
caused by a
dominant faulty
allele.
Draw a punnet
square to show
inheritance of
Huntington’s
disorder .
State which
characteristics an
organism will
show for a given
pair of alleles.
Draw a punnet
square to show
inheritance of
Cystic Fibrosis (CF).
Recognise
questions with
values that
cannot be
answered by
Science.
Explain the
implications of
testing children and
adults for alleles
which cause genetic
diseases.
Describe the
implications of
embryo selection.
Understand how
this ‘pairing up’
causes variation
in offspring.
Explain the link
between the SRY
gene and the
development of
sex organs in the
fetus.
Explain the
terms genotype
and phenotype.
Understand what a
carrier is and how
they pass on a
disease to their
offspring.
Discuss ethical
issues using
ethical
arguments.
Explain the
implications of
genetic testing by
others eg. employers
and insurance
companies.
Describe the role
of the regulatory
body (HFEA) in
the decision
making process.
Understand that
cloning uses stem
cells.
Stem cells
Explain the
difference
between
Embryonic Stem
Cells (ESC) and
Adult Stem Cells
(ASC).
Discuss the
ethical issues
relating to cloning
of human cells.
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