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Byju's Answer
Standard XII
Biology
Mendel and the Pea Plant
In a homozygo...
Question
In a homozygous pea plant, axial flowers
(
A
)
are dominant over terminal flowers
(
a
)
.
What is the phenotype and genotype of the
F
1
generation if a plant bearing pure axial flowers is crossed with a plant bearing pure terminal flowers?
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Solution
Phenotype of F
1
will be Axial flowers.
Genotype of F
1
will be Aa.
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Similar questions
Q.
In a homozygous pea plant, axial flowers
(
A
)
are dominant over terminal flowers
(
a
)
.
What is the phenotypic ratio and genotypic ratio of the above cross shown in (ii)?
Q.
Application based questions.
A true breeding pea plant homozygous for axial violet flowers is crossed with another pea plant with terminal white flowers
W
hat would be the phenotype and genotype of F1 and F2 generations?
Q.
A homozygous tall plant (T) bearing red coloured (R) flowers is crossed with a homozygous dwarf (t) plant bearing white (r) flowers.
Give the genotype and phenotype of the plants of
F
1
generation.
Q.
A pea plant heterozygous for axial flowers is crossed with a pea plant bearing terminal flowers. Predict the phenotypes of the offspring produced as a result of this cross.
Q.
(a) A pea plant bearing axial flowers is crossed with a pea plant bearing terminal flowers. The cross is carried out to find the genotype of the pea plant bearing axial flowers. Work out the cross to show the conclusions you arrive at.
(b) State the Mendel's law of inheritance that is universally acceptable. [5]
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