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प्रश्न
Explain the Term Variation.
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उत्तर
Variation: Occurrence of differences in the progeny of the same parents and individuals of the same species.
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संबंधित प्रश्न
The phenotypic ratio of incomplete dominance is ______.
Which phoenomenon gives 2 : 1 ratio instead of 3 : 1 ratio? Describe with graphical representation.
Give the significance of mutation.
A pure tall plant (TT) is crossed with a pure dwarf plant (tt).
Draw Punnet squares to show
(1) F2 generation
(2) F2 generation.
Explain the Term Crossing-over.
Give Technical Term:
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Mendel experimented upon plants of Oryza sativa.
Multiple choice question.
In a dihybrid cross, F2 generation offsprings show four different phenotypes while the genotypes are _______.
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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 %.)
A normal visioned woman whose father is colourblind married a normal visioned man. What are the probabilities of her sons or daughters to be colourblind? Explain with the help of Punnett square.
Define Alleles.
Two alternative forms of genes or alleles are located on ______.
How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting traits?
