In across 45 tall and 14 dwarf were obtained genotype of parents was :-
(a) TT×TT
(b) TT×Tt
(c) Tt×Tt
(d) TT×tt
Answers
Answer :-
In across 45 tall and 14 dwarf were obtained genotype of parents was :-
(c) Tt × Tt
Explanation :-
The parent with TT genotype produce the gamete with the process of fertilization and can unite in three possible TT and tt parent produced the gametes with t gene. The gametes united to form a hybrid having the genotype Tt. Hybrid offsprings were tall, resembling tall parent due to dominance of tallness over dwarfness. Now, the parents of F1 generation fertilize and Tt offsprings were produced. Two homozygous Tt offsprings produce the offsprings in the ratio 3 : 1. The ratio of tallness & dwarfness is 45 : 15 which is reduced to 3 : 1. Two homozygous parents can produce offsprings in the ratio 3 :1. Hence, the genotype of parents was Tt × Tt.
Answer:
Answer :-
In across 45 tall and 14 dwarf were obtained genotype of parents was :-
(c) Tt × Tt
Explanation :-
The parent with TT genotype produce the gamete with the process of fertilization and can unite in three possible TT and tt parent produced the gametes with t gene. The gametes united to form a hybrid having the genotype Tt. Hybrid offsprings were tall, resembling tall parent due to dominance of tallness over dwarfness. Now, the parents of F1 generation fertilize and Tt offsprings were produced. Two homozygous Tt offsprings produce the offsprings in the ratio 3 : 1. The ratio of tallness & dwarfness is 45 : 15 which is reduced to 3 : 1. Two homozygous parents can produce offsprings in the ratio 3 :1. Hence, the genotype of parents was Tt × Tt.