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प्रश्न
What are the reasons for Mendel’s successes in his breeding experiment?
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उत्तर
Mendel was successful because:
- He applied mathematics and statistical methods to biology and laws of probability to his breeding experiments.
- He followed scientific methods and kept accurate and detailed records that include quantitative data of the outcome of his crosses.
- His experiments were carefully planned and he used large samples.
- The pairs of contrasting characters which were controlled by a factor (genes) were present on separate chromosomes.
- The parents selected by Mendel were pure breed lines and the purity was tested by self-crossing the progeny for many generations.
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?
Explain Mendel’s dihybrid ratio with the help of any one cross.
Under which conditions does the law of independent assortment hold good and why?
Select the period for Mendel’s hybridization experiments
A cross between two tall plants resulted in offspring having few dwarf plants. What would be the genotypes of both the parents?
Mendel’s Law of independent assortment holds good for genes situated on the ______.
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.
Give a reason why only tall plants are observed in F1 progeny.
Which one of the following genetic ratios will be obtained in a dihybrid test cross:
Which of the following statement is not correct for two genes that show 50% recombination frequency?
