Definition :
When two homozygous individuals with one or more sets of contrasting characters are crossed, the characters that appear in F1 hybrid are dominant characters and those that don’t appear in F1 are recessive.
Introduction : O
Out of two contrasting characters, only one express itself in an individual. The factor that expresses itself is called dominant while the other which has not shown its effect is called recessive.
Subtitle – 1 : In a cross between parents with yellow seeds (A) and Parents with green seeds (a), in the first generator (F1) Mendel found that all the hybrids had yellows seeds and thus, the characteristics of only one parent.
In the second cross (F2), the characteristics of both parents reappeared in the proportion of 75% to 25% or 381
In the first generation (F1) both A yellow seed and green seed genes are present, but only A color of yellow seed is revealed because it is dominant gene ‘a’ green seed remains hidden/masked and called recessive.