Topi 5 .
The Mitotic Cell
Cycle
5. 1 Chromosome Structure
Chromosomes are made
of one
very long ,
condensed DNA molecule associated with
proteins
the
proteins present
:
→ hisbones
fits
↳ and condense DNA it in nucleus
organise so
→ other
proteins are enzymes
↳ and
copy repair DMA
chromatin is a
tightly coiled combination
of DNA and proteins
↳ what chromatids and chromosomes are made of
Interphase
DNA replicates to create two identical strands
of chromatids Grill one chromosome)
joined together
by region
a called a centromere
Two chromatids that make
up
the double shutune
of a chromosome are caved sister chromatids
Each of
chromatid is made
up one
very long ,
condensed DNA molecule which ,
is made
up of a series of genes
the ends
of the chromatids are sealed with
protective structures called telomeres
, 1 Describe the structure
of a chromosome limited to
.
:
,
→ DNA
histone
→
proteins
→ sister chromatids
→ centromere
→ telomeres
chromosomes
condensed DNA molecule
are made
of
associated
one
very long ,
with
proteins
the
proteins present
.
→ hisbones
fits
↳ and condense DNA it in nucleus
organise so
→ other
proteins are enzymes
↳ and
copy repair DMA
chromatin is a
tightly coiled combination
of DNA
and
proteins
↳ what chromatids and chromosomes are
made
of
centromere is where sinner
region
a
chromatids are held
together ,
consists
of two kinetochores which are on each
chromatid .
Kinetochores hold two chromatids
together and can pull chromatids apart
centrosome
organises and distributes the spindle and is an anchor for microtubules
Microtubules
""""#(Ñh"
"
•→EoaeoB
" sister
"
-
chromatin
unnzg.sn chromatids
oeo8oQ¥
man
The Mitotic Cell
Cycle
5. 1 Chromosome Structure
Chromosomes are made
of one
very long ,
condensed DNA molecule associated with
proteins
the
proteins present
:
→ hisbones
fits
↳ and condense DNA it in nucleus
organise so
→ other
proteins are enzymes
↳ and
copy repair DMA
chromatin is a
tightly coiled combination
of DNA and proteins
↳ what chromatids and chromosomes are made of
Interphase
DNA replicates to create two identical strands
of chromatids Grill one chromosome)
joined together
by region
a called a centromere
Two chromatids that make
up
the double shutune
of a chromosome are caved sister chromatids
Each of
chromatid is made
up one
very long ,
condensed DNA molecule which ,
is made
up of a series of genes
the ends
of the chromatids are sealed with
protective structures called telomeres
, 1 Describe the structure
of a chromosome limited to
.
:
,
→ DNA
histone
→
proteins
→ sister chromatids
→ centromere
→ telomeres
chromosomes
condensed DNA molecule
are made
of
associated
one
very long ,
with
proteins
the
proteins present
.
→ hisbones
fits
↳ and condense DNA it in nucleus
organise so
→ other
proteins are enzymes
↳ and
copy repair DMA
chromatin is a
tightly coiled combination
of DNA
and
proteins
↳ what chromatids and chromosomes are
made
of
centromere is where sinner
region
a
chromatids are held
together ,
consists
of two kinetochores which are on each
chromatid .
Kinetochores hold two chromatids
together and can pull chromatids apart
centrosome
organises and distributes the spindle and is an anchor for microtubules
Microtubules
""""#(Ñh"
"
•→EoaeoB
" sister
"
-
chromatin
unnzg.sn chromatids
oeo8oQ¥
man
