In sweet pea plants,the presence of dominant | vedclass

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(D) The cross is between $CcPp$ (purple) and $Ccpp$ (white).To find the offspring,we perform a Punnett square analysis:Gametes from $CcPp$: $CP, Cp, c

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$3$ purple and $5$ white coloured flowers

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(D) The cross is between $CcPp$ (purple) and $Ccpp$ (white).To find the offspring,we perform a Punnett square analysis:Gametes from $CcPp$: $CP, Cp, cP, cp$Gametes from $Ccpp$: $Cp, cp$| | $CP$ | $Cp$ | $cP$ | $cp$ ||---|---|---|---|---|| $Cp$ | $CCPp$ (Purple) | $CCpp$ (White) | $CcPp$ (Purple) | $Ccpp$ (White) || $cp$ | $CcPp$ (Purple) | $Ccpp$ (White) | $ccPp$ (White) | $ccpp$ (White) |Counting the phenotypes:Purple flowers $(C-P-)$: $CCPp, CcPp, CcPp$ = $3$ plants.White flowers (others): $CCpp, Ccpp, Ccpp, ccPp, ccpp$ = $5$ plants.Therefore,the ratio is $3$ purple : $5$ white.

In sweet pea plants,the presence of dominant $C$ and $P$ genes is essential for the development of purple colour. The ratio of plants producing flowers of different colours in the progeny of the cross $CcPp \times Ccpp$ will be:

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