Cov txheej txheem:

Yuav ua li cas koj ua Punnett square?
Yuav ua li cas koj ua Punnett square?

Video: Yuav ua li cas koj ua Punnett square?

Video: Yuav ua li cas koj ua Punnett square?
Video: Yuav ua li cas thiaj khiav dim lub ntiajteb no 2024, Hlis ntuj nqeg
Anonim

Cov kauj ruam

  1. Kos ua 2x2 square .
  2. Lub npe alleles koom nrog.
  3. Xyuas cov niam txiv genotypes.
  4. Sau cov kab nrog ib tus niam txiv lub genotype.
  5. Sau cov kab nrog rau lwm tus niam txiv lub genotype.
  6. Kom txhua lub thawv tau txais cov ntawv los ntawm nws kab thiab kab.
  7. Txhais cov Punnett square .
  8. Piav qhov phenotype.

Raws li txoj cai, koj yuav pom qhov feem pua ntawm Punnett square?

Faib tus naj npawb ntawm cov thawv nrog ib qho tseem ceeb allele byfourand muab qhov tshwm sim los ntawm 100 kom tau txais feem pua lub caij nyoog uas tus xeeb ntxwv yuav muaj qhov tseem ceeb. Piv txwv li (2/4) * 100 = 50, yog li muaj 50 feem pua muaj feem yuav muaj menyuam muaj qhov muag daj.

Kuj Paub, koj sau genotype li cas? genotype = cov noob ntawm lub cev; foronespecific trait peb siv ob tsab ntawv los sawv cev rau genotype . Ib tsab ntawv loj sawv cev rau daim ntawv tseem ceeb ntawm agene (allele), thiab tsab ntawv me yog cov ntawv luv rau cov qauv ntawm cov noob (allele).

Raws li txoj cai, Punnett Square siv los txiav txim qhov genotype li cas?

Ob yam a Punnett square tuaj yeem qhia koj yog genotypes thiab phenotypes ntawm cov xeeb ntxwv. A genotype yog lub genetic pleev ntawm lub cev. Qhov no qhia los ntawm peb yam kab mob caj ces tau piav qhia ua ntej (BB, Bb, bb). Lub phenotype yog qhov zoo ntawm cov genesexpress.

Ob hom Punnett Squares yog dab tsi?

Hom Punnett Squares Rau cov ntoo khaub lig monohybrid, cov no yog 2X2 squares nrog plaub lub thawv, txhua tus sawv cev rau ib qho xwm txheej fertilization ntawm niam txiv gametes. Qhov thib ob hom yog siv los kwv yees qhov tshwm sim ntawm kev xyaum ua yug me nyuam nyob qhov twg ob traits raug ua raws thiab Punnett square yog loj, nrog rau kaum lub thawv.

Pom zoo: