943907
B1 - You and Your Genes
- Genes, Chromosome and DNA
- a gene is a short
length of a
cromosome
- each
chromosome
is a very long
molecule of
DNA
- the genetic
material in the
nucleus is
arranged into
chromosomes
- most cells in the
body have a
nucleus
- the nucleus
controls what
the cell actually
does
- the nucleus
contains the
genetic
material
- each gene is
a code for
making a
certain
protein
- having different
versions of
proteins means we
end up with
different
characteristics
- having different
versions of
proteins means we
end up with
different
characteristics
- genes
can exist
is different
versions
- different
versions give
different
characteristics
- different
versions of the
same gene are
called alleles
- e.g. blue eyes
- different
versions of the
same gene are
called alleles
- different
versions give
different
characteristics
- other
proteins are
functional
proteins
- for example
enzymes are
proteins which help
with food digestion
by breaking up food
molecules
- for example
enzymes are
proteins which help
with food digestion
by breaking up food
molecules
- a gene is a short
length of a
cromosome
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