Green (Y) is dominant over yellow (y) in peas, and the smooth allele (W) is dominant over wrinkled (w). Which of the following crosses produces green and smooth peas?
A
yyWw× yyWw
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B
Yyww× YYWW
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C
yyWW× yyWW
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D
Yyww× yyww
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E
None of the above
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Solution
The correct option is B Yyww× YYWW
Gametes
YW
Yw
YYWw
yw
YyWw
Green and smooth peas correspond to YYWW or YYWw or YyWw.
When cross between Yyww ∗ YYWW occurs the get the required genotype of smooth green peas.
YYWW produces gametes YW while Yyww produces gametes Yw and yw.