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4.Principles of Inheritance and Variation
medium
A true breeding plant producing red flowers is crossed with a pure plant producing white flowers. Allele for red colour of flower is dominant. After selfing the plants of first filial generation, the proportion of plants producing red and white flowers in the progeny would be
A
$9: 3: 3: 1$
B
$3: 1$
C
$9: 3: 4$
D
$9: 6: 1$
Solution
In dominant epistasis, a dominant gene(epistatic) masks the expression of another dominant or recessive gene (hypostatic). Such interactions give the modified $F_{2}$ ratio as $12: 3: 1$
Standard 12
Biology
