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Mendel's Experiment

Green Y is do...

Question

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

\times

yyWw

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B

Yyww

\times

YYWW

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C

yyWW

\times

yyWW

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D

Yyww

\times

yyww

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E

None of the above

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Solution

The correct option is B Yyww $\times$ 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.
So, the correct option is 'Yyww× YYWW'.

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