contestada

A pea plant heterozygous for plant height, pod shape, and flower color was selfed. The progeny consisted of 272 tall, inflated pods, purple flowers; 92 tall, inflated, white flowers; 88 tall, flat pods, purple; 93 dwarf, inflated, purple; 35 tall, flat, white; 31 dwarf, inflated, white; 29 dwarf, flat, purple; 11 dwarf, flat, white. Which alleles are dominant in this cross?

Respuesta :

Answer:

Tall , Inflated and Purple are dominant

Explanation:

The given phenotypical count is as follows -

Tall, inflated pods, purple flowers- [tex]272[/tex]

Tall, inflated, white flowers - [tex]92[/tex]

Tall, flat pods, purple - [tex]88[/tex]

Dwarf, inflated, purple- [tex]93[/tex]

Tall, flat, white - [tex]35[/tex]

Dwarf, inflated, white- [tex]31[/tex]

Dwarf, flat, purple- [tex]29[/tex]

Dwarf, flat, white- [tex]11[/tex]

Total number of species

[tex]272+92+88+93+35+31+29+11\\= 651[/tex]

Let Trepresents tall allele and t represent dwarf allele , P represents allele for purple flower and p represents allele for white flower , I represents alleles for inflated flower and i represents allele for

Phenotypical ratio

Tall, inflated pods, purple flowers- TTIIPP

Tall, inflated, white flowers - TTIIpp

Tall, flat pods, purple - TTiiPP

Dwarf, inflated, purple- ttIIPP

Tall, flat, white - TTiipp

Dwarf, inflated, white- ttIIpp

Dwarf, flat, purple- ttiiPP

Dwarf, flat, white- ttiipp

Hence, Tall , Inflated and Purple are dominant allele

Otras preguntas