NEET Biology question

BiologyPrinciples of Inheritance and VariationNEET

Read the given statements and select the correct option. (i) Percentage of homozygous dominant individuals obtained by selfing individuals is 25%. (ii) The number of types of genetically different gametes produced by genotype is 2. (iii) The phenotypic ratio of the monohybrid F2 progeny in the case of *Mirabilis jalapa* is 3 : 1.

Answer: (B)

Solution

(i) Selfing gives offspring , so homozygous dominant () individuals make up exactly 25% — true. (ii) is heterozygous at only one locus (); the number of distinct gamete types is $

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Question ID VK-120328