Chibadwa

Jini ndi kachidutswa kakang'ono ka DNA. Chibadwa chimauza thupi momwe angapangire mapuloteni enaake. Pali majini pafupifupi 20,000 mu selo iliyonse yamthupi la munthu. Pamodzi, amapanga pulani ya thupi la munthu ndi momwe imagwirira ntchito.

Chibadwa cha munthu chimatchedwa genotype.

Chibadwa chimapangidwa ndi DNA. Nthambo za DNA zimapanga gawo la ma chromosomes anu. Ma chromosomes ali ndi mitundu iwiri yofananira ya mtundu umodzi wamtundu wina. Jini limapezeka chimodzimodzi pa chromosome iliyonse.

Makhalidwe abwinobwino, monga mtundu wa diso, ndiwodziwika kwambiri kapena owonjezera:

• Makhalidwe akulu amalamulidwa ndi jini 1 mu ma chromosomes awiri.
• Makhalidwe owonjezera amafunikira majini onse amitundu iwiri kuti agwire ntchito limodzi.

Makhalidwe ambiri, monga kutalika, amatsimikiziridwa ndi jini loposa 1. Komabe, matenda ena, monga sickle cell anemia, amatha kuyambitsidwa ndi kusintha kwa jini limodzi.

• Chromosomes ndi DNA

Gene. Taber's Medical Dictionary Paintaneti. www.tabers.com/tabersonline/view/Tabers-Dictionary/729952/all/gene. Inapezeka pa June 11, 2019.

Nussbaum RL, McInnes RR, Willard HF (Adasankhidwa) Matenda aumunthu: kapangidwe ka majini ndi ntchito.Mu: Nussbaum RL, McInnes RR, Willard HF, olemba. Thompson & Thompson Genetics mu Mankhwala. 8th ed. Philadelphia, PA: Elsevier; 2016: chaputala 3.