Puas yog Freckles yog Mendelian zoo?
Puas yog Freckles yog Mendelian zoo?

Video: Puas yog Freckles yog Mendelian zoo?

Video: Puas yog Freckles yog Mendelian zoo?
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Anonim

Qhov no qhov zoo yog tshaj tawm vim yog ib lub noob; lub xub ntiag ntawm freckles yog dominant, tsis muaj freckles yog recessive1. Cov noob caj noob ces thaum ntxov tau tshaj tawm tias cov plaub hau curly yog qhov tseem ceeb thiab cov plaub hau ncaj yog recessive. Cov kws tshawb fawb tsis ntev los no ntseeg tias ntau tshaj ib lub noob tuaj yeem koom nrog.

Ua li no, qhov yooj yim Mendelian zoo li cas?

Mendelian Cov yam ntxwv yog cov yam ntxwv uas ua raws li Mendel cov kev cai ntawm tsuas yog 2 qhov ua tau ntawm cov noob (1 tseem ceeb, 1 recessive). Tsuas muaj qee qhov piv txwv ntawm qhov no hauv tib neeg. 1. Siv daim ntawv qhia hauv qab no los txiav txim seb koj qhov phenotype (tus yam ntxwv pom tau) thiab muaj peev xwm genotype(s) (ib khub lossis khub ntawm alleles).

yog dimples ib tug tseem ceeb los yog recessive zoo? Dimples -indentations ntawm lub puab tsaig-zoo li tshwm sim hauv tsev neeg, thiab qhov no qhov zoo yog xav tias yuav tau txais qub txeeg qub teg. Dimples feem ntau suav hais tias yog a tseem ceeb caj ces qhov zoo , uas txhais tau hais tias ib daim qauv ntawm cov noob hloov pauv hauv txhua lub cell yog txaus los ua dimple.

Hais txog qhov no, qhov piv txwv ntawm Mendelian qub txeeg qub teg yog dab tsi?

Mendelian trait Recessive cov muaj qee zaum tau qub txeeg qub teg unnoticeably los ntawm cov kab mob genetic. Piv txwv muaj xws li mob-hlwb anemia, kab mob Tay-Sachs, cystic fibrosis thiab xeroderma pigmentosa.

Dab tsi yog Mendelian qauv ntawm kev qub txeeg qub teg?

Mendelian Keeb Kwm . Mendelian qub txeeg qub teg hais txog ib qub txeeg qub teg uas ua raws li cov kev cai ntawm kev cais thiab ywj siab assortment nyob rau hauv uas ib tug gene tau qub txeeg qub teg los ntawm leej niam leej txiv cais rau hauv gametes ntawm qhov sib npaug.

Pom zoo: