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NEET UG BIOLOGY MCQ: PRINCIPLE OF INHERITANCE AND VARIATION
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Assertion: When white eyed, yellow bodied
drosophila females were hybridized with red
eyed, brown-bodied males; and
progeny was
intercrossed,
ratio deviated from 9 : 3 : 3 : 1.
Reason: When two genes in a dihybrid are on
the same chromosome, the proportion of parental
gene combinations are much higher than the non parental type.
drosophila females were hybridized with red
eyed, brown-bodied males; and
progeny was
intercrossed,
ratio deviated from 9 : 3 : 3 : 1.
Reason: When two genes in a dihybrid are on
the same chromosome, the proportion of parental
gene combinations are much higher than the non parental type.
View answer and explanation
Correct option: A
If both Assertion and Reason are true and
Reason is the correct explanation of Assertion
Reason is the correct explanation of Assertion
Option A (If both Assertion and Reason are true and Reason is the correct explanation of Assertion) is correct because linked genes on the same chromosome result in a deviation from the expected Mendelian ratio due to a higher proportion of parental gene combinations.
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