Question

1. In snapdragons, red flower color (C^R) is incompletely dominant to white (C^W); the C^R/C^W heterozygotes are pink. A red-flowered snapdragon is crossed with a white-flowered one. Determine the flower color of the following:
   1. the F₁ snapdragons

2. the F₂ snapdragons

3. the progeny of a cross of the F₁ snapdragons to the red parent

4. the progeny of a cross of the F₁ snapdragons to the white parent

Answer 1

IN INCOMPLETE DOMINANCE, BOTH FACTORS OF A CHARACTER ARE PRESENT BUT PHENOTYPICALLY NEITHER OF THEM EXPRESS SO A NEW PHENOTYPE DEVELOP. TO KNOW THE FLOWER COLOR OF F1, F2 ETC. FIRST WE WILL CROSS THE GIVEN PARENT BY FINDING THEIR GAMETES, PUTTING THEM IN PUNNETT SQUARE, THEN SO WE WILL FIND F1. BY CROSSING 2 F1 WE WILL FIND F2 SNAPDRAGONS.

In snapdragon,es owser color ( i incompletelydominant ushite C hefero fes are P incomplete doinance phenoty picall ot a charapresentutphenoty Prically neither cor epressnd ane- phenotype develop Phenotype Hoer eolor ower color 1 n snapdrogon owere A red- owered 801 Genotstpe O rod Houoe

Red Howered Snapo Punne Square- Pink Hosered Pink Howered Pink Ovoered a Flower colF snapdragons Ono erea answer

age-3 Стар dogons are obtained crossing2shadregon Fgnxedrogon snapdro> Camete Gamete Square CR 1 CR Pink- too ered | White-Howered

Hence, Flocolor o napdrn Pi → (흠.proportion) (2) (c) ASnopdragons are Croce ith the reol parent Fi snapdragon x Red parent Gamete Camete

Punne艹 .cquare- Red oe Pink ovaeresd Hence oer colorot the regery t Cross O red parent roborHon e) Pink wered answer) tshite poret Fi snopdrogonX White parent

C/C easlS Cm-ete mete Punne square Pink - Hosered White- Hoerd Hence, oser color the pgeny ot a Crocs white rent in oered proportion) Ohwerod (Qnaser)