If two pea plants having red (dominant) coloured flowers with unknown genotypes are crossed, 75% of the flowers are red and 25% are white. The genotypic constitution of the parents having red coloured flowers will be

Both homozygous

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One homozygous and other heterozygous

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Both heterozygous

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Both hemizygous

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Solution

The correct option is C Both heterozygous
In this cross, the genotypic constitution of the parents having red coloured flowers will be heterozygous, as shown in the figure.

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If two pea plants having red (dominant) coloured flowers with unknown genotypes are crossed, 75% of the flowers are red and 25% are white. The genotypic constitution of the parents having red coloured flowers will be

The correct option is C Both heterozygousIn this cross, the genotypic constitution of the parents having red coloured flowers will be heterozygous, as shown in the figure.

The correct option is C Both heterozygous
In this cross, the genotypic constitution of the parents having red coloured flowers will be heterozygous, as shown in the figure.