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Refer the given statements and select the correct option,
(i) Percentage of homozygous dominant individuals obtained by selfing Aa individuals is 25%.
(ii) Types of genetically different gametes produced by genotype AABbcc are 2.
(iii) Phenotypic ratio of monohybrid F2 progeny in case of Mirabilis jalapa is 3:1.
  • a)
    All the statements are true
  • b)
    Statements (i) and (ii) are true, but statement (iii) is false
  • c)
    Statements (i) and (iii) are true, but statement (ii) is false
  • d)
    Statements (ii) and (iii) are true, but statement (i) is false
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Refer the given statements and select the correct option,(i) Percentag...
The phenotypic ratio of monohybrid F2 generation in case of Mirabilis jalapa is 1 Red : 2 Pink : 1 White, due to incomplete dominance.
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Most Upvoted Answer
Refer the given statements and select the correct option,(i) Percentag...
Given Statements:
(i) Percentage of homozygous dominant individuals obtained by selfing Aa individuals is 25%.
(ii) Types of genetically different gametes produced by genotype AABbcc are 2.
(iii) Phenotypic ratio of monohybrid F2 progeny in case of Mirabilis jalapa is 3:1.

Explanation:
Let's analyze each statement one by one:

Statement (i):
Percentage of homozygous dominant individuals obtained by selfing Aa individuals is 25%.
- In genetics, homozygous dominant individuals have genotypes AA.
- When Aa individuals are selfed, they can produce four types of gametes: AA, Aa, Aa, and aa.
- The chance of producing AA gametes is 25% (1 out of 4 possibilities).
- Therefore, statement (i) is true.

Statement (ii):
Types of genetically different gametes produced by genotype AABbcc are 2.
- In the given genotype AABbcc, there are three different alleles: A, B, and c.
- Each allele can segregate independently during gamete formation.
- The number of genetically different gametes produced can be calculated by multiplying the number of possibilities for each allele.
- In this case, allele A has 1 possibility, allele B has 1 possibility, and allele c has 2 possibilities (bc).
- Therefore, the total number of genetically different gametes produced is 1 x 1 x 2 = 2.
- Hence, statement (ii) is true.

Statement (iii):
Phenotypic ratio of monohybrid F2 progeny in the case of Mirabilis jalapa is 3:1.
- In monohybrid cross, when two heterozygous individuals (Aa x Aa) are crossed, the phenotypic ratio of the F2 progeny is expected to be 3:1.
- This means that for every three individuals showing one phenotype, there will be one individual showing the other phenotype.
- Therefore, statement (iii) is also true.

Conclusion:
From the analysis of the given statements, it can be concluded that:
- Statement (i) is true.
- Statement (ii) is true.
- Statement (iii) is true.
- Therefore, the correct option is (b) Statements (i) and (ii) are true, but statement (iii) is false.
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Refer the given statements and select the correct option,(i) Percentage of homozygous dominant individuals obtained by selfing Aa individuals is 25%.(ii) Types of genetically different gametes produced by genotype AABbcc are 2.(iii) Phenotypic ratio of monohybrid F2 progeny in case of Mirabilis jalapa is 3:1.a)All the statements are trueb)Statements (i) and (ii) are true, but statement (iii) is falsec)Statements (i) and (iii) are true, but statement (ii) is falsed)Statements (ii) and (iii) are true, but statement (i) is falseCorrect answer is option 'B'. Can you explain this answer?
Question Description
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