There a pea plant,the trait of flowers bearing purple colour (PP) in domination over white colour (pp). Explain the inharitance pattern F1 and F2 generations with the help of a cross flowing the rules of inharitance of traits. State the visible characters of F1and F2 progenies.
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Answer:
Explanation:
The crossing between two plants and inheritance of single contrasting trait is studied by monohdrid cross.
Mendel crossed two pure plants that is purple and white .
purple. * white
parents PP. * pp
gametes. P. P. * p. p
f1-generation Pp. Pp. Pp. Pp
phenotype =1:1
genotype =1:1
All the plants in f1prigeny were purple.The white is not lost but only supressed by dominant.
Mendel called supressed trait as ressecieve trait and expressed trait as dominant trait.
on self crossing in f1progeny :
Purple. * purple
f1-progeny Pp. Pp
gametes. P. p. P. p
f2-progeny Pp. Pp. Pp. pp
phenotype =3:1
genotype =1:2:1
In F2-progeny three plants are purple and one white plant
The white trait reappears in f2-progeny because the genes responsible for white reunits in f2-progeny.
Answer:
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