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प्रश्न
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.
उत्तर
(1) Genotype — TtRr. Phenotype — All tall with red flowers.
(2) Gametes — TR, Tr, tR, tr.
(3) 9:3:3:1, 9 — Tall with red flowers, 3 — Tall with white flowers, 3 — Dwarf with red flowers, 1 — Dwarf with white flowers.
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संबंधित प्रश्न
Explain Mendel’s dihybrid ratio with the help of any one cross.
Complete the following sentence with appropriate word:
_______ is the ratio of dihybrid cross.
Multiple Choice Question
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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?
In a testcross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates ______.
Mendel’s Law of independent assortment holds good for genes situated on the ______.
In the F2 generation of a Mendelian dihybrid cross the number of phenotypes and genotypes are ______.
Each gamete carry ______.
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?
Independent assortment means:
The Law of independent assortment is applicable for the traits which ______
Mendel's law of independent assortment is based on F2 ratio of:
Describe the dihybrid cross upto F2 generation as conducted by Gregor Mendel using pure lines of Garden Pea for characters-seed shape and seed colour.
