It is essential for triggering the development of maleness in humans:
Correct answer: B. Presence of SRY gene on Y chromosome
- A. Presence of Y chromosome
- B. Presence of SRY gene on Y chromosome
- C. X-Y balance
- D. Autosome and X chromosome balance
Explanation
Presence of SRY on the short arm of Y-chromosome is inevitable for triggering male development in the embryo.
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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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