P2 2pq thiab q2 sawv cev li cas?
P2 2pq thiab q2 sawv cev li cas?

Video: P2 2pq thiab q2 sawv cev li cas?

Video: P2 2pq thiab q2 sawv cev li cas?
Video: Example Hardy-Weinberg Problems 2024, Kaum ib hlis
Anonim

Thaum Hardy-Weinberg equilibrium tau ntsib cov kab zauv hauv qab no yog qhov tseeb: p2 ua + 2 npq + q2 ua = 1. Qhov twg p2 lus qhov zaus ntawm homozygous dominant genotype, q 2 npe qhov zaus ntawm recessive genotype thiab 2 npq yog qhov zaus ntawm heterozygous genotype.

Ib yam li ntawd, koj tuaj yeem nug, p2 txhais li cas hauv Hardy Weinberg?

Hauv kev sib npaug, p2 ua sawv cev rau qhov zaus ntawm homozygous genotype AA, q2 sawv cev rau qhov zaus ntawm homozygous genotype aa, thiab 2pq sawv cev rau qhov zaus ntawm heterozygous genotype Aa. Tsis tas li ntawd, cov sum ntawm allele frequencies rau tag nrho cov alleles ntawm qhov chaw yuav tsum yog 1, yog li p + q = 1.

Ib tug kuj nug, vim li cas thiaj muaj 2 hauv 2pq? Lub sij hawm p 2 sawv cev rau qhov zaus ntawm homozygotes tseem ceeb (AA) thiab lub sij hawm q 2 sawv cev rau qhov zaus ntawm homozygotes recessive (aa). p sawv cev rau qhov zaus ntawm allele ntawm allele A, thiab q sawv cev rau allele zaus ntawm allele a.

Tom qab ntawd, lo lus nug yog, p2 sib npaug li cas?

P2 yog lub zog los ntawm lub cev muaj zog (shaft effect). P2 yog lub nominal zog ntawm lub cev muaj zog. Qhov txawv ntawm P1 thiab P2 qhia ob qho tib si: kev ua haujlwm ntawm lub cev muaj zog (ηmot.)

Q2 hauv biology yog dab tsi?

q2 ua = recessive allele i.e thaum peb muaj ob 'q' los ntawm niam txiv. thiab 2pq = heterozygote piv txwv li thaum peb tau hais'p' los ntawm ib niam txiv thiab 'q' los ntawm lwm tus niam txiv.

Pom zoo: