Sex is determined in human beings:
Correct answer: B. At time of fertilization
- A. By ovum
- B. At time of fertilization
- C. 40 days after fertilization
- D. Seventh to eight week when genitals differentiate in foetus
Explanation
Sex is determined in human beings at the time of fertilization. Sex of the baby depends upon the sperm which fertilizes the ovum.
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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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