NEET Solved Paper 2019 Question 63
Question: In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in $ F _1 $ generation, pink flowers were obtained. When pink flowers were selfed, the $ F _2 $ generation showed white, red and pink flowers. Choose the incorrect statement from the following: [NEET 5-5-2019]
Options:
A) Ratio of $ F _2 $ is $ \frac{1}{4}(Red):\frac{2}{4}(Pink):\frac{1}{4}(White) $
B) Law of Segregation does not apply in this experiment
C) This experiment does not follow the Principle of Dominance
D) Pink colour in is due $ F _1 $ to incomplete dominance
Show Answer
Answer:
Correct Answer: B
Solution:
- The Law of Segregation, which states that allele pairs separate or segregate during gamete formation and randomly unite at fertilization, still applies in this experiment. The observed 1:2:1 ratio in the $ F _2 $ generation (Red:Pink:White) is a result of the segregation of alleles. The experiment demonstrates incomplete dominance, where neither allele is completely dominant over the other, resulting in a blending of traits (pink flowers) in the $ F _1 $ generation.
BETA
