المساعد الشخصي الرقمي

مشاهدة النسخة كاملة : كرومسوم1


سونهام يغمور
10-18-2008, 11:03 AM
http://www.ncbi.nlm.nih.gov/books/bookres.fcgi/gnd/01chr.gif


Size 280 Mb
Largest human chromosome about 10 per cent of the genome

Number of genes 2968

Factor V

A key factor in the blood clotting cascade about 5% of Europeans are carries the factor V leaden mutation. A risk factor for various thrombosis.

Rhesus D

Determines of the rhesus blood factor system gene codes for proteins found on the surface of RBCs. Particularly important during pregnancy.

Presenilin-2

Associated with inherited early-onset Alzheimer’s disease. Defect leads to build up of amyloid beta protein in the brain.

Hereditary prostate cancer 1

Accounts for about 1 in 500 cases of prostate cancer.

LEFTY A and LEFTY B

Animals show left-right asymmetries (such as the position of heart and spleen). Situs inverses is a disorder in which normal asymmetry is mirror-image reversed. LEFTY A and LEFTY B are human equivalents of mice genes implicated in development of asymmetry

ولد المدينه
11-28-2008, 06:17 PM
شكرا لك

يعطيك العافيه

zaher2006
11-30-2008, 09:32 AM
شكرا الله يعطيك ألف عافية