Mendel in one of his experiment with pea plant crossed a variety of pea plant having round seed with having wrinkled seed .state Mendel's observations giving reason of F1 and F2 progeny of this cross.Also ,list any two contrasting characters,other than round seeds of pea plant that Mendel used in his experiment
Answers
Mendel experimented on a pea plant and considered 7 main contrasting traits in the plants. Then, he conducted both the experiments to determine the aforementioned inheritance laws. A brief explanation of the two experiments is given below.
Monohybrid Cross
In this experiment, Mendel took two pea plants of opposite traits (one short and one tall) and crossed them. He found the first generation offsprings were tall and called it F1 progeny. Then he crossed F1 progeny and obtained both tall and short plants in the ratio 3:1. To know more about this experiment, visit Monohybrid Cross – Inheritance Of One Gene.
Mendel even conducted this experiment with other contrasting traits like green peas vs yellow peas, round vs wrinkled, etc. In all the cases, he found that results were similar. From this, he formulated the laws of Segregation And Dominance.
Dihybrid Cross
In a dihybrid cross experiment, Mendel considered two traits, each having two alleles. He crossed wrinkled-green seed and round-yellow seeds and observed that all the first generation progeny (F1 progeny) were round-yellow. This meant that dominant traits were round shape and yellow color. He then self-pollinated the F1 progeny and obtained 4 different traits wrinkled-yellow, round-yellow, wrinkled-green seeds and round-green in the ratio 9:3:3:1. Check Dihybrid Cross and Inheritance of Two Genes to know more about this cross.
Color of seed
Dominant :yellow
Reccessive: green
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