Match the following and choose the correct combination from the options given:

Column I Column II

A Rr × Rr i 1 : 1

B Rr × rr ii 3 : 1

C RrYy × RrYy iii 1 : 1 : 1 : 1

D RrYy × rryy iv 9 : 3 : 3 : 1

A-ii, B-iv, C-iii, D-i

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A-i, B-iii, C-ii, D-iv

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A-iv, B-iiii, C-ii, D-i

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A-ii, B-i, C-iv, D-iiii

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Solution

The correct option is D A-ii, B-i, C-iv, D-iiii
Rr X Rr: Phenotype ratio = 3 : 1 (red:white)
$R r \times r r =$ monohybrid test cross ratio = 1 : 1
$R r Y y \times R r Y y$ : Dihybrid phenotypic ratio = 9 : 3 : 3 :1
$R r Y y \times r r y y =$ dihybrid test cross ratio = 1 : 1 : 1 : 1

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	Column I		Column II
A	Rr × Rr	i	1 : 1
B	Rr × rr	ii	3 : 1
C	RrYy × RrYy	iii	1 : 1 : 1 : 1
D	RrYy × rryy	iv	9 : 3 : 3 : 1

Match the following and choose the correct combination from the options given: Column I Column II A Rr × Rr i 1 : 1 B Rr × rr ii 3 : 1 C RrYy × RrYy iii 1 : 1 : 1 : 1 D RrYy × rryy iv 9 : 3 : 3 : 1

The correct option is D A-ii, B-i, C-iv, D-iiiiRr X Rr: Phenotype ratio = 3 : 1 (red:white) Rr×rr= monohybrid test cross ratio = 1 : 1 RrYy×RrYy : Dihybrid phenotypic ratio = 9 : 3 : 3 :1 RrYy×rryy= dihybrid test cross ratio = 1 : 1 : 1 : 1

Match the following and choose the correct combination from the options given:

Column I Column II

A Rr × Rr i 1 : 1

B Rr × rr ii 3 : 1

C RrYy × RrYy iii 1 : 1 : 1 : 1

D RrYy × rryy iv 9 : 3 : 3 : 1

The correct option is D A-ii, B-i, C-iv, D-iiii
Rr X Rr: Phenotype ratio = 3 : 1 (red:white)
$R r \times r r =$ monohybrid test cross ratio = 1 : 1
$R r Y y \times R r Y y$ : Dihybrid phenotypic ratio = 9 : 3 : 3 :1
$R r Y y \times r r y y =$ dihybrid test cross ratio = 1 : 1 : 1 : 1