A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
E) If the assertion is false but reason is true
Correct Answer: B
Solution :
Complementary genes are those nonallelic genes which independently show a similar effect but produces a new trait when present together in the dominant form. W. Bateson and R.C. Punnett observed that, when two white flowered varieties of sweet pea, Lathyrus odoratus were crossed, \[{{F}_{1}}\] progeny had coloured flowers. When \[{{F}_{1}}\]progeny obtained from \[{{F}_{1}}\] was classified, plants with coloured flowers and those with white flowers were obtained in 9 : 7 ratio. The two dominants are brought together in \[{{F}_{1}}\] generation and therefore coloured flowers are produced.
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