Question

In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in F₁ generation, pink flowers were obtained. When pink flowers were selfed, the F₂ generation showed white, red and pink flowers. Choose the incorrect statement from the following :
(1) This experiment does not follow the Principle of Dominance.
(2) Pink colour in F₁ is due to incomplete dominance.
(3) Ratio of F₂ is 1/4(Red) : 2/4(Pink) : 1/4 (white)
(4) Law of Segregation does not apply in this experiment.

Answer 1

Law of Segregation does not apply in this experiment is the incorrect statement here.

Explanation:

• The law of segregation according to Gregor Johann Mendel is of the statement that the factors segregate independently during gametogenesis and reunite together during the fertilization.

• The principal of incomplete dominance says that the dominant character or the allele is not completely dominant over the recessive allele and both of them are equally expressed in a heterozygous condition.

• So here in this condition the F2 generation shows the red flowers to pink flowers to white flowers are in ratio of 1 : 2 : 1.

• So segregation must have happened else the pink flowers wouldn't have come in the F2 generation as the pink flowers at the heterozygous flowers and they have the perfect ratio of 1 :2 : 1 here in this experiment.

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Explain monohybrid inheritance and the law of segregation ?

Answer 2

Correct answer is...

→ [4] law of segregation does not apply in the experiment.

Explanation:

• ᴍʀᴋ. ᴛʜᴀɴᴋs ᴀɴᴅ ʙʀᴀɪɴʟɪsᴛ