1. THE CYCLE CELL AND
STRUCTURE DNA
Laura Elena Cuartas
Molecular Biology
July 22/2012
UPB- Medellín

4. Telomeres and
telomerase serve to give
information about age
and pathologies like
cancer.
Cell division is a important
process to give rise to new
cells containing their
complete genomas.

6. Using biochemical and
genetic assays the protein
Lem4 is structurally different
in human cells and embryos
of the worm, but have the
same function in cell division.

7. Lem4 is a protein which
simultaneously co-ordinates
the activity of kinases and
phosphatases on a target
protein essential for cell
division.

8. It is essential that the nuclear envelope disappears
during cell division and then reassemble it correctly, to
occur this is necessary for the participation of kinases
and phosphatases proteins.

9. Lem4 protein has a relation with the cancer
patients

10. In this study we can observe the importance of
phosphorylation and desphosphorylation reactions
and its essential role in cell division and cell
operation.

12. Telomerases protect
chromosomes from
deteriorating and guard
the genetic information
at the ends of
chromosomes during
cell division. Besides’
they are considered
markers of biological or
cellular aging.

13. Shortened telomeres have been linked to increased risk
of cancers, heart disease, dementia and mortality.

14. The length of
telomeres depends
on the stress,
worries and
phobias.

15. I think anxienty and stress are emotional
feeling that people can control, because
these affect cromosomes in the telomeres
and reduce life average.

17. The DNA structure is very important because it
has the information about each personal
genome, this study has to protect the life and the
personal safety and the culture of the people
because al cientific investigation has to be ethics.

18. Knowledge of the
nuclear envelope
met know different
molecules involved
in cell cycle and
that way related
pathologies such as
cancer.

19. • MARTINEZ SANCHÉZ. LINA MARÍA. BIOLOGÍA MOLECULAR. 7.
ED. MEDELLÍN: UPB. FAC. DE MEDICINA, 2012. 44-51 PAG.
• Asencio C. Identified a essential protein in nuclear envelope
assembly in cell division, according to the UPO.Europapresst
[Internet journal] 2012 Jul [access 20 of July of 2012].
Available: http://www.europapress.es/andalucia/sevilla-
00357/noticia-identifican-proteina-esencial-ensamblaje-
envoltura-nuclear-division-celular-upo-20120713150648.html
• Okereke O. Anxiety linked to shortened telomeres,
accelerated aging: research. Medicalxpress [Internet journal]
2012 Jul [access 20 of July of 2012]. Available:
http://medicalxpress.com/news/2012-07-anxiety-linked-
shortened-telomeres-aging.html