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प्रश्न
A typical Mendelian dihybrid ratio of F2 generation is 3:1.
विकल्प
True
False
उत्तर
False
Correct statement: A typical Mendelian dihybrid ratio of F2 generation is 9 : 3 : 3 : 1.
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संबंधित प्रश्न
The F2 progeny of a monohybrid cross showed phenotypic and genotypic ratio as 1:2:1 unlike that the Mendel’s monohybrid F2 ratio. With the help of a suitable example, work out a cross and explain how it is possible.
Define the following:
Homozygous
A plant with green pods and smooth seeds with the genotype Ggss will give rise to the following gametes:
Explain the following term : Homozygous
Answer the following question.
Compare in any three ways the chromosomal theory of inheritance as proposed by Sutton and Bovery with that of experimental results on pea plant presented by Mendel.
Multiple Choice Question
What is the effect of sexual reproduction?
Flowers of the garden pea are bisexual and self-pollinated. Therefore, it is difficult to perform a hybridization experiment by crossing a particular pistil with the specific pollen grains. How Mendel made it possible in his monohybrid and dihybrid crosses?
A heterozygous violet-flowered pea plant is crossed to another homozygous violet- flowered pea plant. What percent of the progeny plants will have the recessive trait, i.e., white flowers?
The F1 generation has all tall, and F2 ratio 3 : 1, it proves:
Enlist the steps of controlled cross pollination. Would emasculation be needed in a cucurbit plant? Give reasons for your answer.
