Thaum twg ib qho tseem ceeb allele coexists nrog ib tug recessive allele?

Cov txheej txheem:

Thaum twg ib qho tseem ceeb allele coexists nrog ib tug recessive allele?
Thaum twg ib qho tseem ceeb allele coexists nrog ib tug recessive allele?
Anonim

Thaum tus tseem ceeb allele coexists nrog ib tug recessive allele nyob rau hauv ib tug neeg heterozygote, lawv cuam tshuam nrog ib leeg li cas? Lawv tsis cuam tshuam ib leeg.

Thaum twg muaj noob caj noob ces ua ke nrog cov noob caj noob ces txhais tau hais tias yog?

Cov noob tseem ceeb thaum ua ke nrog cov noob caj noob ces txiav txim siab qhov zoo yuav tsum tau qhia. Recessive gene tsis qhia thaum ua ke nrog cov noob tseem ceeb. Recessive genes tsuas yog qhia thaum ua ke nrog lwm cov noob caj noob ces. Nees nkaum ob khub ntawm Chromosomes zoo ib yam thiab hu ua autosomes.

Puas yog qhov tseem ceeb ntawm allele qhov ncauj qhov ntswg rau cov nyhuv ntawm cov allele recessive?

Ua tiav dominance tshwm sim thaum tus tseem ceeb allele tag nrho npog qhov muaj qhov tsis zoo. … Nyob rau hauv cov xwm txheej no uas muaj noob caj noob ces muaj nyob rau hauv ib yam kab mob tab sis npog los ntawm ib tug tseem ceeb counterpart, cov kab mob no yog hu ua ib tug cab kuj ntawm cov noob, raws li nws muaj peev xwm hais tau nyob rau hauv lub neej yav tom ntej tiam.

Dab tsi yog qhov txawv ntawm cov neeg heterozygous thiab homozygous?

Ib tug neeg homozygous muaj peev xwm nqa tau ib tug dominant los yog ib tug recessive allele thaum tus neeg heterozygous muaj ob qho tib si tseem ceeb thiab recessive alleles. Ib tug neeg homozygous tsim ib hom gamete thaum tus neeg heterozygous ua ob hom gametes.

Yuav kwv yees muaj pes tsawg tus xeeb ntxwv yuav muaj davhlau ya nyob twgpaj thiab dwarf?

Puas yuav kwv yees tias muaj pes tsawg tus xeeb leej xeeb ntxwv yuav muaj paj tawg paj thiab dwarf? Raws li txoj cai ntawm kev ywj pheej assortment, 25 nroj tsuag (1/16 ntawm cov xeeb ntxwv) yog kwv yees tias yuav yog aatt, lossis homozygous recessive. Koj nyuam qhuav kawm 12 nqe lus!

Pom zoo:

Nthuav cov khoom
Lo lus prosodically txhais li cas?
Nyeem ntxiv

Lo lus prosodically txhais li cas?

hais txog lub suab thiab lub suab (=txoj kev tus neeg hais lus lub suab nce thiab ntog) ntawm cov lus: Prosodic nta ua lub luag haujlwm tseem ceeb hauv kev tsim cov qauv kev ntxhov siab hauv cov lus thiab kab lus. prosodic teebmeem zoo li suab thiab intonation.

Vim li cas kuaj cov qib calcitonin?
Nyeem ntxiv

Vim li cas kuaj cov qib calcitonin?

Kev kuaj calcitonin feem ntau yog siv txhawm rau kuaj xyuas C-cell hyperplasia thiab medullary thyroid cancer medullary thyroid cancer Medullary carcinoma yuav xa mus rau ib qho ntawm ntau hom qog nqaij hlav ntawm epithelial keeb kwm. Raws li lo lus "

Thaum twg st sebastian raug ntaus?
Nyeem ntxiv

Thaum twg st sebastian raug ntaus?

Nws tau raug ntaus los ntawm Pope Benedict XIV hauv 1743 thiab canonized hauv 1807 los ntawm Pope Pius VII. Thaum twg Sebastian dhau los ua neeg dawb huv? St. 288, Rome [Italy]; Hnub ua koob tsheej Lub Ib Hlis 20), cov ntseeg thaum ntxov tau nrov los ntawm cov neeg pleev kob Renaissance thiab ntseeg tias tau tua neeg thaum muaj kev tsim txom ntawm cov ntseeg los ntawm Roman huab tais Diocletian.