Kev daws: Thaum heterozygous siab nroj tsuag (Tt) yog tus kheej-pollinated, ces siab thiab dwarf nroj tsuag yog tau txais nyob rau hauv qhov piv ntawm 3: 1 Nws qhia txoj cai ntawm kev cais.
Thaum heterozygous siab nroj tsuag yog tus kheej pollinated assertion?
Assertion: Thaum heterozygous siab nroj tsuag tau nws tus kheej pollinated, cov txiaj ntsig tau siab thiab luv nroj tsuag. Yog vim li cas: Heterozygous nroj tsuag muaj ob yam tseem ceeb thiab recessive noob.
Thaum heterozygous siab nroj tsuag yog tus kheej hla?
Assertion (A): Thaum cov nroj tsuag siab heterozygous tau hla tus kheej, cov txiaj ntsig tau yog ob tsob ntoo siab thiab luv. Yog vim li cas (R): Heterozygous nroj tsuag muaj ob qho tib si tseem ceeb thiab recessive alleles. a) Ob leeg A thiab R yog qhov tseeb, thiab R yog qhov tseeb piav qhia ntawm qhov kev lees paub.
Puas yog cov qoob loo ntawm tus kheej pollinated heterozygous?
Tus kheej pollination ua rau homozygosity thiab hla pollination ua rau heterozygosity. Yog li peb yuav tsum siv homozygisity nyob rau hauv tus kheej pollinated cov qoob loo thiab heterozygosity nyob rau hauv cross pollinated qoob loo. Raws li cov noob caj noob ces cog breading pejxeem muaj plaub yam.
Thaum ib tug heterozygous siab pea cog ntawm F1 tiam thaum nws tus kheej fertilization ua rau siab thiab dwarf phenotypes Nws proves lub hauv paus ntsiab lus ntawm:-?
Principle of segregation: Raws li lub hauv paus ntsiab lus, rau ib qho tshwj xeeb, khub ntawm alleles ntawm txhua tus niam txiv sib cais thiabtsuas yog ib qho allele kis los ntawm txhua tus niam txiv mus rau cov xeeb ntxwv. Leej twg allele nyob rau hauv niam txiv khub ntawm alleles tau txais yog ib qho teeb meem ntawm lub caij nyoog.
