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प्रश्न
In the F2 generation of a Mendelian dihybrid cross the number of phenotypes and genotypes are ______.
विकल्प
phenotypes - 4; genotypes - 16
phenotypes - 9; genotypes - 4
phenotypes - 4; genotypes - 8
phenotypes - 4; genotypes - 9
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उत्तर
In the F2 generation of a Mendelian dihybrid cross the number of phenotypes and genotypes are phenotypes - 4; genotypes - 9.
संबंधित 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?
The physical expression of a gene is called ______.
Under which conditions does the law of independent assortment hold good and why?
Which Mendelian idea is depicted by a cross in which the F1 generation resembles both the parents
Among the following characters which one was not considered by Mendel in his experimentation pea?
What is back cross?
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 normal green male maize is crossed with albino female. The progeny is albino because ______.
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 ______.
Two genes ‘A’ and ‘B’ are linked. In a dihybrid cross involving these two genes, the F1 heterozygote is crossed with homozygous recessive parental type (aa bb). What would be the ratio of offspring in the next generation?
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.
Given below is a dihybrid cross performed on Drosophila.
Which of the following conclusions can be drawn on the basis of this cross? When yellow bodied (y), white-eyed (w) Drosophila females were hybridized with brown bodied (y+), red-eyed males (w+) and F1 progenies were intercrossed, F2 generation would have shown the following ratio:
What is the difference between genetic drift and change due to natural selection?
From the list given below, select the character which can be acquired but not inherited
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?
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:
Mendel's law of independent assortment is based on F2 ratio of:
In what year was Mendel's work independently rediscovered by multiple scientists?
Which three scientists are credited with independently rediscovering Mendel's work in 1900?
Which plant species did Mendel primarily use in his hereditary experiments from 1856 to 1863?
