Can I statements for Biology

This is something we always do in our school, as preparation for our exams and to be honest they seem to help me a lot, so I thought I might as well share them to see how helpful they are, so I would be grateful to hear any comments negative or positive and would like you to rate on how useful it as because if it is a positive outcome I can upload more for biology, physics and chemistry.

Thank you, hope they are useful.

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B1: You and your genes
The inheritance of detailed information from each generation to the next is a important story
in science. For each of us, inheritance also raises questions about our own development. In this
module, you will learn the basic concepts of inheritance: genes as units of inheritance, the
interaction between genes and environment and sexual reproduction as a source of variation.
More complex ideas, such as mechanisms for protein synthesis and
cell division, are not required are covered in later modules.
Throughout the module, you are introduced to genetic technologies that open up new
possibilities for individuals and society. In doing so, they present significant ethical issues for
citizens. You will explore some of the ideas people use to make ethical decisions. This
enable you to engage with issues which regularly appear in the media, such as genetic testing
and cloning research.
Some of the issues covered in this module may be very sensitive for you.
Issues for citizens Questions that science may help to answer
How do my genes affect my appearance, What are genes and how do they affect
my body, and my health? the way that organisms develop?
How and why do people find out about Why can people look like their parents,
their genes? brothers or sisters, but not be identical to
What decisions do people make with this them?
information? How can and should genetic information
Can we change our genes, and should this be used?
be allowed? How can we use our knowledge of genes

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What is cloning, and should it be allowed? to prevent disease?
How can we use our knowledge of genes
to improve treatment of disease?
What are stem cells, and why could they
be useful in treating some diseases?
B1.1 What are genes and how do they affect the way that organisms Y/ Evidence
develop? N
1.Can I remember recall that instructions to control how an organism Y .
develops and functions are found in the nucleus of its cells and are called
2.…read more

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Can I explain that many characteristics are determined by several genes Y
working together(eg eye colour)?
B1.2 Why can people look like their parents, brothers and sisters, but
not be identical to them?
1. Can I remember that body cells contain pairs of chromosomes and that Y
sex cells contain only one chromosome from each pair
2. Can I explain that chromosomes in a pair carry the same genes in the Y .…read more

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I explain that an allele can be dominant or recessive, and that: Y
a. an individual with one or both dominant alleles (in a pair of alleles) will
show the associated dominant characteristic
b. an individual with one recessive allele (in a pair of alleles) will not show the
associated recessive characteristic
c. an individual with both recessive alleles (in a pair of alleles) will show the
associated recessive characteristic
9.…read more

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Can I explain that a small number of disorders are caused by faulty Y
alleles of a single gene including Huntington's disease and cystic fibrosis?
2. Can I remember that disorders may be caused by dominant alleles (eg Y
Huntington's disease) or recessive alleles (eg cystic fibrosis)?
3. Can I remember the symptoms of Huntington's disease and cystic Y
fibrosis, to include:
a. Huntington's disease ­ late onset, tremor, clumsiness, memory loss,
inability to concentrate, mood changes
b.…read more

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Can I explain how testing adults and fetuses for alleles that cause genetic
disorders hasimplications that need to be considered, including:
a. risk of miscarriage as a result of cell sampling for the genetic test
b. using results that may not be accurate, including false positives and false
c. whether or not to have children at all
d. whether or not a pregnancy should be terminated
e. whether other members of the family should be informed?
8.…read more

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4. Can I explain how clones of animals occur:
a. naturally, when cells of an embryo separate (identical twins)
b. artificially, when the nucleus from an adult body cell is transferred
to an empty unfertilised egg cell?
5. Can I describe that there are different types of stem cells:
a. adult stem cells which are unspecialised cells that can develop into many, Y
but not all,types of cells
b.…read more


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