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प्रश्न
Explain the Term Variation.
उत्तर
Variation: Occurrence of differences in the progeny of the same parents and individuals of the same species.
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संबंधित प्रश्न
A heterozygous tall plant of pea is crossed with a dwarf plant of pea.
Calculate the phenotypic ratio of the progeny.
What is crossing-over? What are the factors affecting it?
Mutation alerts the hereditary material. Give reasons.
Differentiate Between Homozygous shows Heterozygous.
Give the Phenotype of the F2 generation.
Name the following:
The study of heredity and variation.
Give Technical Term:
Differences occurring within offsprings of the same progeny.
Complete the following sentence with appropriate word:
______is the hereditary unit.
Explain test cross with suitable example and state its ratios.
Enlist dominant and recessive characters in pea plant with respect to the position of flower, colour of seed and colour of a pod in tabulated form.
In a dihybrid cross with contrasting characters, the number of different genotypes obtained in F2 generation are ______.
Identify the genotype of a round seeded tall plant which when crossed with a plant of similar genotype produces the following percentage of phenotypes:
(tall round = 56.25 %, tall wrinkled = 18.75 %, dwarf round = 18.75 %, dwarf wrinkled = 6.25 %.)
Which one of the following genotype will yield only one type of gamete?
Mendel was successful in his experiments because:
A pair of corresponding chromosomes of the same shape, size and one from each parent is called ______.
Define the following term:
Gene
Name any two genetic diseases in humans.
