Nyob rau hauv biology, kev hloov pauv yog kev hloov pauv hauv nucleotide ib ntus ntawm cov genome ntawm cov kab mob, kab mob, lossis extrachromosomal DNA. Viral genomes muaj DNA lossis RNA.
Kev hloov noob txhais li cas?
Mutations yog cov kev hloov pauv hauv cov caj ces, thiab lawv yog qhov ua rau muaj ntau haiv neeg. Cov kev hloov no tshwm sim ntawm ntau qib sib txawv, thiab lawv tuaj yeem muaj qhov txawv txav.
Yeeb kev hloov pauv nrog piv txwv yog dab tsi?
Txawm hais tias tib neeg haploid genome muaj 3 billion nucleotides, kev hloov pauv hauv ib qho piv txwv tuaj yeem ua rau lub cev tsis zoo. Piv txwv li, sickle-cell anemia yog ib yam kab mob tshwm sim los ntawm qhov tsawg tshaj plaws ntawm kev hloov caj ces.
Yeeb kev hloov pauv yog dab tsi thiab nws tshwm sim li cas?
=Kev hloov pauv yog a hloov pauv hauv DNA ntu. Kev hloov pauv tuaj yeem tshwm sim los ntawm DNA luam qhov yuam kev ua thaum lub sijhawm faib cell, raug ionizing hluav taws xob, raug rau cov tshuaj hu ua mutagens, lossis kis los ntawm cov kab mob.
Yeeb kev hloov pauv li cas?
Gene mutations kuj tshwm sim thoob plaws lub neej. Lawv tuaj yeem tshwm sim los ntawm luam qhov yuam kev ua thaum lub xovtooj sib faib thiab rov ua duaLawv tuaj yeem tshwm sim los ntawm cov kab mob, raug hluav taws xob (xws li lub hnub) lossis tshuaj lom neeg (xws li haus luam yeeb). Kev hloov pauv tshwm sim txhua lub sijhawm thiab feem ntau lawv tsis muaj kev cuam tshuam.
