Ib yam kab mob tuaj yeem yog homozygous dominant, yog tias nws nqa ob daim ntawv luam ntawm tib qho tseem ceeb allele, lossis homozygous recessive, yog tias nws nqa ob daim ntawv luam ntawm tib qho allele. Heterozygous txhais tau hais tias ib qho kab mob muaj ob qhov sib txawv ntawm cov noob.
Dab tsi yog qhov ua tau phenotype?
Cov ntsiab lus: phenotype yog lub hnub qub ntawm kev pom zoo; genotype yog qhov txiaj ntsig ntawm noob caj noob ces ntawm tib neeg. Phenotype=genotype + kev loj hlob (hauv ib puag ncig muab). … Nrog alleles 'A' thiab 'a' muaj peb hom genotypes AA, Aa thiab aa.
Yog GG homozygous lossis heterozygous?
Cov niam txiv yug muaj tseeb GG thiab gg yog homozygous rau cov noob xim noob. Cov kab mob uas muaj ob qhov sib txawv rau cov noob hu ua heterozygous (Gg). Cov xeeb leej xeeb ntxwv ntawm tus ntoo khaub lig nruab nrab ntawm GG (homozygous dominant) thiab gg (homozygous recessive) cov nroj tsuag yog tag nrho cov heterozygous rau lub pod xim noob.
Yuav ua li cas genotypes rau tus ntoo khaub lig?
Single-Gene Test Crosses
Yuav kom teeb tsa koj tus ntoo khaub lig, koj yuav tsum xub paub tias tus txiv neej ya muaj ib qho ntawm ob hom: Ee lossis EEVim tias tus txiv neej nthuav tawm lub cev xim phenotype tseem ceeb, koj yuav tsum hla nws nrog tus poj niam nrog homozygous recessive phenotype thiab genotype.
Yuav ua li cas muaj ntau yam phenotypes?
Thaum cov noob rau ib qho zoo tshwm sim tsuas yog ob qho alleles & cov alleles ua si raws li Mendel Txoj Cai Tswjfwm Ntiag Tug, muaj 3 qhov ua tau genotypes (kev sib txuas ntawm alleles) & 2 tau phenotypes (tus tseem ceeb los yog ib tug recessive).
