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Byju's Answer
Standard X
Biology
Law of Dominance
When Mendel c...
Question
When Mendel crossed a Tall plant with a dwarf plant, no medium height plants were obtained in
F
1
generation. Why?
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Solution
Because dominant genes express themselves and suppress the effect of recessive genes. So no medium sized plants were obtained.
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Similar questions
Q.
On crossing tall plants with dwarf plants, the percentage of dwarf plants in F2 generation, obtained by Mendel was________.
Q.
When Mendel crossed a Tall plant with a Dwarf plant, the ratio of dwarf plants in F2 generation was
___
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Q.
Pure tall plants are crossed with pure dwarf plants. In the
F
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generation were selfed and the ratio of tall to dwarf plants obtained in
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Q.
In one of his experiments with pea plants, Mendel observed that when a pure tall pea plant is crossed with a pure dwarf pea plant, in the first generation
F
1
only tall plants appear.
(i)When the
F
1
generation plants were self-fertilized, he observed that in the plants of second-generation
F
2
both tall plants and dwarf plants were present. Why did it happen? Explain briefly.
(ii)What happens to the traits of the dwarf plants in this case?
Q.
On crossing two heterozygous tall plants (Tt), a total of 500 plants were obtained in
F
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generation. What will be the respective number of tall and dwarf plants obtained in the
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generation?
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