Year 9 B1 You and your Genes Name

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GCSE
Target Grade
Year 9 B1 You and your Genes Name
Aim: ‘What will I be learning?’
Ideas about Science (IaS)
What key words such as gene, DNA, chromosome, inherited and variation mean
That characteristics can be caused by genes, the environment or both.
What a clone is and how to clone plants and animals.
How gender (sex) is determined in humans during fertilization.
How a fetus can be tested for genetic disorders.
That embryo screening may cause ethical dilemmas.
Objectives: ‘How will I be learning?’
(IaS 6)
By cloning your own cauliflower plants.
By thinking and discussing ethics relating to genetic testing of fetuses.
By researching the HFEA.
By drawing punnet squares and calculating probabilities.
By performing role plays about ethical issues.
By modeling fertilisation.
Date
Current Level
Teacher comment
December 2013
Date
Media Watch Grade
Key words
Making decisions about science and technology (6)
6.3 –Discuss the official regulation of scientific research e.g. by the HFEA
6.4 –Decide which questions can/cannot be answered using a scientific approach because they
involve values (ethics)
6.5 – Some forms of scientific research and applications of scientific knowledge, have ethical
implications. Summarise why people may agree/disagree about what should be done (or
permitted).
6.6 – Discuss arguments that either the right decision is one which leads to the best outcome for
the greatest number of people involved, or that certain actions are considered right or wrong
whatever the consequences
Date
B1 unit test Grade
Gene
Cystic fibrosis
Allele
Recessive
Amniocentesis
Clone
Chromosome
Huntington’s disorder
Fetus
Homozygous
Genotype
Ethical
Genetic testing
Asexual
Dominant
Heterozygous
Phenotype
Decision
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.
Pupil comment
The same and
different
1
Know what key
words e.g. nucleus,
gene,
chromosome, DNA
mean.
The same but
different
2
Give examples of
characteristics
caused by genes or
by the
environment.
Explain where
genes are found
and what their
function is.
Give examples of
characteristics
caused by both
genes and the
environment.
Know that proteins
can be structural
or functional.
Give examples of
characteristics
caused by several
genes working
together.
Cloning
3
Clone some
cauliflower
(practical) and
understand how
to keep
conditions sterile.
Describe how
clones are formed
by asexual
reproduction and
give examples of
organisms that
produce clones.
Explain that
differences
between clones
can only be due
to the
environment.
Describe how
natural and
artificial clones
are produced.
What makes you
the way you are?
4
Understand that
body cells have
46 chromosomes,
in 23 pairs.
Male or female
5
Remember that
males have XY and
females have XX
chromosomes.
A unique mix of
genes
6
Understand that
an allele is a
different version
of a gene.
Understand that
sex cells have 23
single
chromosomes.
Play a game to show
how gender is
inherited.
Understand what
homozygous and
heterozygous
alleles means.
Explain how
chromosomes
pair up at
fertilization.
Draw a punnet
square to show
inheritance of
gender.
State which
characteristics an
organism will
show for a given
pair of alleles.
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.
Predicting inheritance
8
Know the symptoms
of Huntington’s
disorder and Cystic
Fibrosis (CF).
Know that
Huntington’s disorder
is caused by a
dominant faulty allele
and that CF is caused
by a recessive faulty
allele.
Draw a punnet square
to show inheritance of
Huntington’s disorder
and CF.
Genetic testing of
fetuses
9
Describe the uses
of genetic testing
for screening of
fetuses.
10
Describe the uses of
genetic testing for
predictive testing for
genetic diseases.
Discuss the risks
and implications
of genetic testing
of fetuses.
Discuss ethical issues
relating to testing
fetuses using ethical
arguments.
Know that PGD
stands for PreImplantation Genetic
Diagnosis.
Explain how stem
cells can be used to
treat some
illnesses.
Explain the
implications of
testing children and
adults for alleles
which cause genetic
diseases.
Explain the
implications of
genetic testing by
others eg. employers
and insurance
companies.
Describe the
implications of
embryo selection.
Explain the
difference between
Embryonic Stem
Cells (ESC) and
Adult Stem Cells
(ASC).
Discuss the ethical
issues relating to
cloning of human
cells.
Recognise
questions with
values that
cannot be
answered by
Science.
Understand what a
Discuss ethical
carrier is and how they issues using
pass on a disease to
ethical
their offspring .
arguments.
Using genetic testing
Can you choose your
Stem cells
child?
11
13
Explain how embryos Know that cloning
can be selected by
depends on stem
genetic testing
cells.
before implantation
(PGD).
Describe the role of
the regulatory body
(HFEA) in the
decision making
process.
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