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प्रश्न
In a Mendelian monohybrid cross, the F2 generation shows identical genotypic and phenotypic ratios. What does it tell us about the nature of alleles involved? Justify your answer.
उत्तर
In a monohybrid cross, starting with parents which homozygous dominant and homozygous recessive, F1 would be heterozygous for the trait and would express the dominant allele. But in case of incomplete dominance, a monohybrid cross shows the result as follows.
Phenotypic ratio
Genotypic ratio
Here the genotypic and phenotypic ratios are the same. So, we can conclude that when genotypic and phenotypic ratios are the same, the alleles show incomplete dominance.
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संबंधित प्रश्न
A diploid organism is heterozygous for 4 loci, how many types of gametes can be produced?
Explain the following term with example.
Incomplete dominance
Name the pattern of inheritance where F1 phenotype
does not resemble either of the two parents and is in between the two.
Two non-allelic genes produce the new phenotype when present together but fail to do so independently, it is called ______.
A recessive allele is expressed in ______.
The inheritance of flower colour in Antirrhinum (dog flower) is an example of ______.
In Antirrhinum (dog flower), phenotypic ratio in F2 generation for the inheritance of flower colour would be ______.
Phenotypic and genotypic ratio is similar in case of ______.
Genotypic and phenotypic ratio in monohybrid cross remains the same in care of:
If a homozygous red-flowered plant (dominant) crossed with a homozygous white floured plant (recessive) the offspring should be:
Which one is an intragenic interaction of genes?
A plant with red flowers was crossed with another plant with yellow flowers. If F1 showed all flowers orange in colour, explain the inheritance.
