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In Drosophila, the sex is determined by
[2003]
  • a)
    whether the egg is fertilized or develops parthenogenetically
  • b)
    the ratio of number of X-chromosomes to the sets of autosomes
  • c)
    X and Y chromosomes
  • d)
    the ratio of pairs of X-chromosomes to the pairs of autosomes
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
In Drosophila, the sex is determined by[2003]a)whether the egg is fert...
Calvin Bridges demonstrated that in Drosophila, the sex is determined by ratio of the number of X chromosomes to the sets of autosomes.
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In Drosophila, the sex is determined by[2003]a)whether the egg is fert...
According to genic theory determination, ratio of X - chromosomes to the number of sets of autosomes determine the sex in Drosophila. If the ratio of X chromosome to the total number of sets of autosomes ( X/A) falls between 1 and 0.50, the genotype will show intersex phenotype. The X/A value is 1.0 for normal female and 0.5 for normal male. So, option B is correct answer.
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In Drosophila, the sex is determined by[2003]a)whether the egg is fertilized or develops parthenogeneticallyb)the ratio of number of X-chromosomes to the sets of autosomesc)X and Y chromosomesd)the ratio of pairs of X-chromosomes to the pairs of autosomesCorrect answer is option 'B'. Can you explain this answer?
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In Drosophila, the sex is determined by[2003]a)whether the egg is fertilized or develops parthenogeneticallyb)the ratio of number of X-chromosomes to the sets of autosomesc)X and Y chromosomesd)the ratio of pairs of X-chromosomes to the pairs of autosomesCorrect answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about In Drosophila, the sex is determined by[2003]a)whether the egg is fertilized or develops parthenogeneticallyb)the ratio of number of X-chromosomes to the sets of autosomesc)X and Y chromosomesd)the ratio of pairs of X-chromosomes to the pairs of autosomesCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In Drosophila, the sex is determined by[2003]a)whether the egg is fertilized or develops parthenogeneticallyb)the ratio of number of X-chromosomes to the sets of autosomesc)X and Y chromosomesd)the ratio of pairs of X-chromosomes to the pairs of autosomesCorrect answer is option 'B'. Can you explain this answer?.
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