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
Answer:D
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