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प्रश्न
Enlist the steps of controlled cross pollination. Would emasculation be needed in a cucurbit plant? Give reasons for your answer.
उत्तर
Steps of controlled cross pollination: Selection of parents → Emasculation → Bagging → Collection of pollen from male parent →Dusting the pollen on stigma →Re-bagging Emasculation could not be needed in a cucurbit plant because it has unisexual flowers.
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संबंधित प्रश्न
In a homozygous pea plant, axial flowers (A) are dominant over terminal flowers (a).
(i) What is the phenotype and genotype of the F1 generation if a plant bearing pure axial flowers is crossed with a plant bearing pure terminal flowers?
(ii) Draw a Punnett square board to show the gametes and offsprings when both the parent plants are heterozygous for axial flowers.
(iii) What is the phenotypic ratio and genotypic ratio of the above cross shown in (ii)?
(iv) State Mendel’s Law of Dominance.
(v) Name two genetic disorders commonly seen in human males.
Predict the genotype and phenotype of the following cross in pea.
TtRr x TtRr
(Capital letters show dominance)
Choose the correct answer:
Father of genetics ________
Long answer type question.
Explain with suitable example an independent assotrment.
In a monohybrid cross between two heterozygous individuals, percentage of pure homozygous individuals obtained in F1 generation will be ______.
If linkage was known at the time of Mendel then which of the following laws, he would not have been able to explain?
When two unrelated individuals or lines are crossed, the performance of F1 hybrid is often superior to both its parents. This phenomenon is called?
In Mendel's experiments, colour of seed coat, nature of flower, position of flower, colour of pod, height of stem, are called
What is the scientific name of the pea plant that Mendel used for his experiments?
