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प्रश्न
A pea plant pure for yellow seed colour is crossed with a pea plant pure for green seed colour. In the F1 generation all pea plants were with yellow seeds. Which law of Mendel is applicable?
उत्तर
A pea plant pure for yellow seed colour is crossed with a pea plant pure for green seed colour. In the F1 generation, all pea plants were with yellow seeds. Here, Mendel’s law of dominance is applicable.
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संबंधित प्रश्न
Using a Punnett square, work out the distribution of phenotypic features in the first filial generation after a cross between a homozygous female and a heterozygous male for a single locus.
___________ is the scientific name of garden pea, which Mendel used for his experiments.
In Mendel’s experiments, tall pea plants (T) are dominant over dwarf pea plants (t).
State Mendel’s Law of Dominance.
Predict the genotype and phenotype of the following cross in pea.
TTrr x ttRR
(Capital letters show dominance)
State whether the following statement is true or false:
The dominant character masks the recessive character.
Multiple Choice Question
What is the effect of sexual reproduction?
Discuss any two points due to which Mendel got success in his experiment?
Test cross is when ______.
How many pairs of contrasting characters in pea bad were chosen by Mendel?
In peas, tallness is dominant over dwarfness, and red colour of flowers is dominant over the white colour. When a tall plant bearing red flowers was pollinated with a dwarf plant bearing white flowers, the different phenotypic groups were obtained in the progeny in numbers mentioned against them:
Tall, Red = 138
Tall, White = 132
Dwarf, Red = 136
Dwarf, White = 128
Mention the genotypes of the two parents and of the four offspring types.
