Moderate

In humans, the chances of male and female offspring are theoretically:

Correct answer: C. 1:1

  • A. 1:2:1
  • B. 2:1
  • C. 1:1
  • D. 3:1

Explanation

According to probability rule, the chances for two types of sperms in fertilizing the single type of egg are fifty fifty.

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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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