I. In four-o\'clock flowers, red floyer color, R, is incompletely dominant over

Question

I. In four-o'clock flowers, red floyer color, R, is incompletely dominant over white, r, The . heteroygous plants are pink lowered. List the ratio of possible flower colors in the offspring for each of the, following crosses: C) RR X rr D) Rr X Rr 2. Ifa red-flowered four-o'c flower colors of the: lock plant is crossed with a white-flowered one, what will be the possible A) Fi generation B) F2 generation C) If we crossed one of the Fl generation with the red parent D) If we crossed one of the F1 generation with the white parent

Explanation / Answer

1) a) Rr × RR

1:1 ration

b) rr x Rr

1:1

C) RR x rr

This cross will give all pink colour flower

d) Rr x Rr

1:2:1

2) a) RR x rr = Rr

All F1 will be pink in coloue

b) Rr xRr

Then the genotypes will be = RR, Rr, Rr , rr

The offsprings will be red , pink and white

C) Rr x RR

Then genotypes will be : RR ,RR, Rr ,Rr

The offspirng will be red and pink

d) Rr x rr

Genotypes : Rr , Rr , rr ,rr

Colours will be pink and white.

male/ female R R R RR (red) RR (red) r Rr (pink) Rr (pink)

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