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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
What is a dihybrid cross? How did Mendel perform this cross?
Give Technical Term:
The ratio of offspring on F2 generation in a dihybrid cross.
Multiple Choice Question
When two individuals differing in at least one character are crossed, the process is known as:
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In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that ______.
A normal green male maize is crossed with albino female. The progeny is albino because ______.
Mendel’s last law is ______.
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 ______.
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Reason: Higher parental gene combinations can be attributed to crossing over between two genes.
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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.
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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:
In the Mendelian dihybrid cross when heterozygous round yellow is self grossed, round green offsprings are represented by the genotype.
The ratio of 9 : 3 : 3 : 1 is due to:
