Write the genotypic ratio of F2 generation in a monohybrid cross that was carried out by Mendel in a pea plant.
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A cross between a tall plant (TT) and short pea plant (tt) resulted in progeny that were all tall plants because
(a) tallness is the dominant trait
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If a round, green seeded pea plant (RR yy) is crossed with wrinkled, yellow seeded pea plant, (rr YY) the seeds produced in F1 generation are
(a) round and yellow
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Why did Mendel choose pea plant for his experiments?
(a) Easy to grow (b) Short life span (c) Easily distinguishable characters (d) Larger size of flower (e) Self pollinated
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In order to obtain the F1 generation, Mendel pollinated a true-breeding, say, tall plant with a true-breeding dwarf plant.
Genotype of 50% of the offspring would resemble one parent and the rest the other parent. All the F1 offsprings of the cross are heterozygous so allowing self pollination is sufficient to...
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In monohybrid cross of red and white flower, Mendel got only red flower. On setting the F1 plants having red flower
On crossing red and white flower only red colour flower appeared in the F1 generation. But the white colour flower again appear in the F2 generation which is raised out...
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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,
(a) The dwarf traits of the plants is not expressed in the presence of the dominant tall trait. (b) In the F2 generation, both the tall and dwarf traits are present in...
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List any two characters of Pea plants used by Mendel in his experiments other than height of the plant and the colour of the seed.
Flower colour / Flower position / Pod shape / Pod colour / Seed shape (Any two)
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When Morgan conducted dihybrid cross on Drosophila like Mendel did with pea plants,
- When two genes in a dihybrid cross were located on the same chromosome they did not segregate independently - The proportion of parental gene combinations were much higher than non...
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When Morgan conducted dihybrid cross on Drosophila like Mendel did with pea plants,,
-When two genes in a dihybrid cross were located on the same chromosome they did not segregate independently - The proportion of parental gene combinations were much higher than non parental...
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If we cross-bred tall (dominant) pea plant with pure bred dwarf (recessive) pea plant,
(i) Tall (ii) 3:1 (iii) Dwarf Reason: Being a recessive trait, dwarfness can only be expressed in the absence of dominant trait/ in its pure form.
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