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प्रश्न
Two heterozygous parents are crossed. If the two loci are linked, what would be the distribution of phenotypic features in the F1 generation for a dihybrid cross?
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उत्तर
Two heterozygous parents (i.e., GgLl and GgLl) are crossed, and the two loci are linked; then the cross will be:
This means, if ‘G’ represents a grey body (dominant), ‘g’ a black body (recessive), ‘L’ long (dominant) and ‘l’ dwarf (recessive), then the distribution of phenotypic features in the F1 generation will be 3 : 1, i.e., `3/4` will show the dominant feature, grey and long, either in a homozygous (GGLL) or in a heterozygous (GgLl) condition and `1/4` will show the recessive feature, black and dwarf (ggll).
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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?
A homozygous Tall plant (T) bearing red coloured (R) flowers is crossed with a homozygous dwarf plant (t) bearing white flowers (r):
(1) Give the Genotype and Phenotype of the F2 generation.
(2) Give the possible combinations of the gametes that can be obtained from the F2 hybrid.
(3) Give the dihybrid ratio and the phenotype of the offsprings of the F2 generation when two plants of the F1 generation above are crossed.
Give Technical Term:
The ratio of offspring on F2 generation in a dihybrid cross.
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?
Under which conditions does the law of independent assortment hold good and why?
Test cross involves
Which Mendelian idea is depicted by a cross in which the F1 generation resembles both the parents
Name the seven contrasting traits of Mendel.
Define Genetics.
What are the reasons for Mendel’s successes in his breeding experiment?
Findings of Gregor Mendel were rediscovered by the following scientists EXCEPT for ______
A cross between two tall plants resulted in offspring having few dwarf plants. What would be the genotypes of both the parents?
Two linked genes a and b show 20% recombination. The individuals of a dihybrid cross between ++ /++ × ab/ab shall show gametes ______.
The process of mating between closely related individuals is ______.
In a dihybrid cross, F2 phenotypic ratio is 13 : 3. It is case of ______.
Mendel’s Law of independent assortment holds good for genes situated on the ______.
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.
What will be set of genes present in the F1 generation?
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?
The Law of independent assortment is applicable for the traits which ______
The ratio of 9 : 3 : 3 : 1 is due to:
Mendel's law of independent assortment is based on F2 ratio of:
