In F3 cross the 2/3 round give ratio of:
Correct answer: C. 3 : 1
- A. 2 : 1
- B. 4 : 1
- C. 3 : 1
- D. 1 : 2 : 1
Explanation
He noted that 1/3 of the F2 round produced only round, while 2/3 of the F2 round produced both round and wrinkled in. 3:1 ratio; but F1 wrinkled produced only wrinkled.
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Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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