Biology
Grade-8
Easy

Question

Fill in the missing alleles where T, t represents the height of the tree and G represents the green and g represents the white color of the flower.

  1. TTGG, TTGg, TTGg, TtGg
  2. TtGG, TTgg, TtGG, ttGg
  3. TtGg, ttGG, ttGg, TTgg
  4. Ttgg, TTGG, TTGg, TTgg

hintHint:

Genotype of offspring is obtained by crossing the genes present in the left column with the genes in the upper row of the Punnett square.

The correct answer is: TtGG, TTgg, TtGG, ttGg


    • In a Punnett square, the upper row represents the alleles for the male gametes
    • The left column represents the alleles for the female gametes
    • In the given Punnett square, the cross between:
    1. TG & tG produces TtGG
    2. Tg &Tg produces TTgg
    3. tG &TG producess TtGG
    4. tg & tG produces ttGG
    • The correct option is TtGG, TTgg, TtGG, ttGg