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प्रश्न
Under which conditions does the law of independent assortment hold good and why?
उत्तर
Mendel gave this law based on his dihybrid cross experiment. Here the total number of individuals in F2 will be sixteen which occurs in a ratio of 9 : 3 : 3 : 1 where two parental classes and two new combinations will be produced.
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संबंधित प्रश्न
Two heterozygous parents are crossed. If the two loci are linked what would be the distribution of phenotypic features in F1 generation for a dihybrid cross?
Filling the blank based on the given relationship.
3 : 1 Monohybrid : : 9 : 3 : 3 : 1 : ______
The physical expression of a gene is called ______.
Explain with an example the inheritance of the dihybrid cross. How is it different from monohybrid cross?
Test cross involves
The genotype of a plant showing the dominant phenotype can be determined by
Select the period for Mendel’s hybridization experiments
What are the reasons for Mendel’s successes in his breeding experiment?
Explain the law of dominance in a monohybrid cross.
In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that ______.
In a dihybrid cross AABB x aabb, F2 progeny of AABB, AABb, AaBB and AaBb occurs in the ratio of ______.
In a dihybrid cross, F2 phenotypic ratio is 13 : 3. It is case of ______.
Assertion: When the two genes in a dihybrid cross are situated on the same chromosome, the proportion of parental gene combinations is much higher than the nonparental type.
Reason: Higher parental gene combinations can be attributed to crossing over between two genes.
Do genetic combination of mothers play a significant role in determining the sex of a new born?
Sahil performed an experiment to study the inheritance pattern of genes. He crossed tall pea plants (TT) with short pea plants (tt) and obtained all tall plants in F1 generation.
When F1 plants were self-pollinated, a total of 800 plants were produced. How many of these would be tall, medium height or short plants? Give the genotype of F2 generation.
Which one of the following genetic ratios will be obtained in a dihybrid test cross:
When two hybrids rrTt and Rrtt are gassed, the phenotype ratio of offspring should be:
The ratio of 9 : 3 : 3 : 1 is due to:
