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Q.

Match the scientists to their respective contributions or ﬁndings:
List - I List - II
A James Watson I Mapped gene positions using recombination frequencies.
B Sutton and Boveri II Conducted dihybrid crosses in Drosophila and studied sex-linked genes.
C Thomas Hunt Morgan III Proposed the double-helix structure of DNA, along with other scientist
D Alfred Sturtevant IV Proposed the chromosomal theory of inheritance.

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a

A-III, B-IV, C-II, D-I

b

A-I, B-III, C-IV, D-II

c

A-IV, B-II, C-I, D-III

answer is A.

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Detailed Solution

	List - I		List - II
A	James Watson	III)	Co-discovered the double-helix structure of DNA.
B	Sutton and Boveri	IV)	Developed the chromosomal theory of inheritance.
C	Thomas Hunt Morgan	II)	Conducted dihybrid crosses in Drosophila and studied sex-linked genes
D	Alfred Sturtevant	I)	Mapped gene positions using recombination frequencies.

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