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प्रश्न
In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that ______.
पर्याय
The allels of two genes are segregating independently
It is a case of multiple allelism
It is a multigenic inheritance
The allels of two genes are interacting with each other
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उत्तर
In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that the allels of two genes are segregating independently.
Explanation:
The 9:3:3:1 ratio observed in a dihybrid cross denotes that the alleles of two different genes are assorting independently of each other during gamete formation. This classic Mendelian dihybrid ratio demonstrates the law of independent assortment, which states that gene pairs located on different chromosomes segregate independently during meiosis, resulting in this phenotypic ratio in the F2 generation. Thus, each trait is inherited independently, producing four distinct phenotype classes in the ratio of 9 (both dominant traits) : 3 (dominant first, recessive second) : 3 (recessive first, dominant second) : 1 (both recessive).
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संबंधित प्रश्न
Filling the blank based on the given relationship.
3 : 1 Monohybrid : : 9 : 3 : 3 : 1 : ______
What is a dihybrid cross? How did Mendel perform this cross?
Complete the following sentence with appropriate word:
A character that is suppressed is _________.
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Under which conditions does the law of independent assortment hold good and why?
Select the correct statement from the ones given below with respect to dihydrid cross
Among the following characters which one was not considered by Mendel in his experimentation pea?
Name the seven contrasting traits of Mendel.
Define Genetics.
Findings of Gregor Mendel were rediscovered by the following scientists EXCEPT for ______
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A dihybrid condition is ______.
Mendel’s last law is ______.
The process of mating between closely related individuals is ______.
A fruit fly exhibiting both male and female traits is ______.
Each gamete carry ______.
Given below is a dihybrid cross performed on Drosophila.
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How is the sex of a newborn determined in humans?
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When F1 plants are self-pollinated, which new combination of characters is expected in F2 progeny? How many seeds with these new combinations of characters will be produced when a total 160 seeds are produced in F2 generation? Explain with reason.
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 of the following statement is not correct for two genes that show 50% recombination frequency?
When two hybrids rrTt and Rrtt are gassed, the phenotype ratio of offspring should be:
Describe the dihybrid cross upto F2 generation as conducted by Gregor Mendel using pure lines of Garden Pea for characters-seed shape and seed colour.
