Qhov sib txawv tseem ceeb ntawm cov neeg heterozygous thiab homozygous yog tias tus neeg heterozygous nqa ob qho sib txawv alleles (ob qho tib si tseem ceeb thiab rov ua dua) ntawm cov noob thaum homozygous tus neeg nqa ob daim ntawv luam ntawm tib qho allele, txawm tias tseem ceeb los yog recessive.
Genes muaj xws li alleles lossis luam. Qhov tseeb, ib lub noob feem ntau muaj ob qho alleles. Yuav kom paub meej, ib qho allele yog ib qho qauv ntawm cov noob uas ua rau muaj qhov txawv txav phenotypic. Alleles tuaj yeem yog qhov tseem ceeb lossis rov ua dua. Dominant alleles tau qhia tag nrho hauv phenotype ntawm heterozygote. Heterozygous thiab homozygous tib neeg yog ob hom kab mob categorized raws li hom alleles tam sim no. Ib tus neeg heterozygous yog ib yam kabmob uas muaj ob qho tseem ceeb allele thiab recessive allele. Ib tug neeg homozygous yog ib yam kab mob uas muaj ob qho tseem ceeb alleles los yog ob tug recessive alleles.
Leej twg yog tus neeg Heterozygous?
Heterozygous tus neeg yog ib yam kabmob uas muaj ob hom kabmob sib txawv ntawm cov noob. Ob hom alleles, i.e., dominant thiab recessive, muaj nyob rau hauv cov noob.
Daim duab 01: Heterozygous State
Cov tib neeg Heterozygous tseem hu ua cov neeg nqa khoom ntawm cov allele recessive. Qhov no yog vim lawv nqa cov allele recessive txawm tias nws tsis tuaj yeem tsim cov nyhuv phenotypic. Feem ntau, cov neeg heterozygous dais cov nyhuv phenotypic ntawm cov tseem ceeb allele.
Tus Neeg Homozygous yog leej twg?
Lo lus homozygous txhais tau hais tias lub cev muaj ob daim ntawv theej ntawm tib qho allele ntawm cov noob. Yog hais tias nws nqa ob daim ntawv luam ntawm cov tseem ceeb allele, nws yog hu ua homozygous dominant. Ib yam li ntawd, yog tias nws nqa ob daim ntawv theej ntawm recessive allele, nws yog hu ua homozygous recessive.
Daim duab 02: Homozygous
Yog ib lub cev muaj ib yam ntawm tib hom allele ntawm txhua tus ntawm nws cov chromosomes, cov kab mob ntawd muaj qhov zoo. Yog li ntawd, cov tib neeg homozygous muaj qhov zoo nkauj ntshiab vim lawv ib txwm muaj ib hom alleles.
Dab tsi yog qhov zoo sib xws ntawm Heterozygous thiab Homozygous Individuals?
- Ob tus neeg heterozygous thiab homozygous tib neeg yog qhov tshwm sim ntawm kev hloov pauv ntawm cov alleles ntawm cov noob.
- Ob tug tib neeg ib txwm nqa ob tug alleles.
Qhov txawv ntawm Heterozygous thiab Homozygous Individuals yog dab tsi?
Heterozygous vs Homozygous Individuals |
|
| Heterozygous cov tib neeg yog cov tib neeg uas muaj ob qhov sib txawv ntawm cov noob | Homozygous cov tib neeg yog cov tib neeg uas muaj tib ob daim ntawv theej ntawm cov tseem ceeb allele lossis ob daim ntawv theej ntawm cov allele recessive |
| Type | |
| Ib yam | homozygous dominant lossis homozygous recessive |
| genotype | |
| Muaj genotypes xws li AA lossis aa | Muaj genotype Aa |
| Tus neeg nqa khoom ntawm Recessive Allele | |
| Cov neeg nqa khoom ntawm cov khoom siv rov qab | Tsis yog tus neeg nqa khoom ntawm cov khoom siv rov qab |
| Alleles Present | |
| Muaj ob leeg alleles | Muaj ib hom allele |
Summary – Heterozygous vs Homozygous Individual
Kev faib tawm ntawm cov neeg heterozygous thiab homozygous cov neeg yog los ntawm cov alleles tam sim no hauv cov noob ntawm cov kab mob. Cov neeg heterozygous muaj ob qhov sib txawv ntawm cov noob. Homozygous cov tib neeg muaj ob daim ntawv luam ntawm tib lub allele, txawm tias tseem ceeb los yog rov qab. Yog tias ob lub alleles yog A thiab a, genotype ntawm tus neeg heterozygous yog Aa. Ib yam li ntawd, genotype ntawm homozygous tus neeg yog AA lossis aa. Qhov no yog qhov txawv ntawm heterozygous thiab homozygous cov tib neeg.
