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05/12/2021 6:39 pm
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Which of the following is correct for the condition when plant YyRr is back crossed with the double recessive parent?
(a) 9 : 3 : 3 : 1 ratio of phenotypes only
(b) 9 : 3 : 3 : 1 ratio of genotypes only
(c) 1 : 1 : 1 : 1 ratio of phenotypes only
(d) 1 : 1 : 1 : 1 ratio of phenotypes and genotypes
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05/12/2021 6:40 pm
Correct answer: (d) 1 : 1 : 1 : 1 ratio of phenotypes and genotypes