What is the major value in using a Punnett square?
Correct answer: D. Sows (A), (B) and (C)
- A. Shows all gametic combinations
- B. Shows genotypic ratios
- C. Shows phenotypic ratios
- D. Sows (A), (B) and (C)
Explanation
In summary, a Punnett square is a valuable tool in genetics. It allows us to predict the genetic makeup of offspring from a particular set of parents, providing a visual representation of Mendelian inheritance.
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About Inheritance
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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