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प्रश्न
What is back cross?
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उत्तर
The back cross is a cross of an F1 hybrid with any one of the parental genotypes. The back cross is of two types; they are dominant back cross and recessive back cross. It involves the cross between the F1 off spring with either of the two parents.
संबंधित प्रश्न
Explain with an example the inheritance of the dihybrid cross. How is it different from monohybrid cross?
Which Mendelian idea is depicted by a cross in which the F1 generation resembles both the parents
Name the seven contrasting traits of Mendel.
What are the reasons for Mendel’s successes in his breeding experiment?
Findings of Gregor Mendel were rediscovered by the following scientists EXCEPT for ______
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 ______.
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.
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.
