find the first generation and second generation of AA-yellow flower and aa-white flower?
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10th
Biology
Heredity and Evolution
Heredity
A pea plant with blue color...
Biology
A pea plant with blue color flower by BB is cross-bred with a pea plant with white flower denoted by ww.
a) What is the expected color of the flowers in their F
1
progeny?
b) What will be the percentage of plants bearing white flower in F
2
generation, when the flowers of F
1
plants were selfed?
c) State the expected ratio of the genotype BB and Bw in the F
2
progeny?
Medium
Answer
The cross can be represented as shown in the figure.
a) The color of flowers in F
1
progeny is blue.
b) The phenotypic ratio of blue and white flowers in F
2
generation is 3 : 1
So, percentage of plants bearing white flowers in F
2
generation = 1/4 x 100 = 25%
c) The ratio of genotype BB and Bw in F2 progeny: 1: 2
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