Dab tsi yog Dihybrid Punnett Square?
Dab tsi yog Dihybrid Punnett Square?

Video: Dab tsi yog Dihybrid Punnett Square?

Video: Dab tsi yog Dihybrid Punnett Square?
Video: Hmong new song 2016 - Yog dab tsi - Xub Hluav Taws (Official MV) 2024, Kaum ib hlis
Anonim

Ib qho kev sib tham Punnett Square yog dihybrid ntoo khaub lig. A dihybrid cross lem obtraits. Ob niam txiv yog heterozygous, thiab ib tug allele rau txhua tus cwj pwm ua tiav dominance *. Qhov no txhais tau hais tias ob leeg niam txiv muaj cov alleles recessive, tab sis nthuav tawm thedominantphenotype.

Kuj nug, Punnett square txhais yog dab tsi?

Cov Punnett square yog a square diagramthatis siv los kwv yees cov genotypes ntawm ib qho kev sib tw hla kev orbreeding. Nws muaj npe tom qab Reginald C. Punnett , whodevised txoj kev. Daim duab kos yog siv los ntawm biologists los txiav txim qhov tshwm sim ntawm ib tug me nyuam muaj aparticulargenotype.

Tom qab ntawd, lo lus nug yog, koj yuav teeb tsa Punnett square li cas? Part 1 Ua Punnett Square

  1. Kos ib 2 x 2 square.
  2. Sau npe cov 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 lub Punnett square.
  8. Piav txog phenotype.

Kuj kom paub, dab tsi yog qhov piv txwv Dihybrid cross?

A dihybrid ntoo khaub lig yog a ntoo khaub lig nruab nrab ntawm ob tus neeg uas yog ob qho tib si heterozygous rau ob qhov sib txawv. Asan piv txwv , cia saib cov txiv laum huab xeeb thiab hais tias qhov sib txawv ntawm qhov peb tab tom tshuaj xyuas yog xim thiab qhov siab. Onedominantallele H rau qhov siab thiab ib qho recessive allele h, uas ua rau cov txiv laum huab xeeb cog.

Dab tsi mus hauv Punnett square?

Punnett Square . Cov Punnett square nws tus kheej yog ib lub rooj nyob rau hauv uas tag nrho cov tau tshwm sim genetic tshwm sim foragiven mating yog teev. Nyob rau hauv nws daim ntawv simplest, lub Punnettsquare muaj ib square muab faib ua plaub-quadrants. Tag nrho saum lub rooj, tag nrho cov genotypes rau lub haploidfemale gamete tau teev tseg.

Pom zoo: