Consider the following statements regarding human chromosomes: 1. The Y chromosome is significantly smaller than the X chromosome and contains fewer genes, primarily those related to male sex determination. 2. X-linked recessive traits are more commonly expressed in males because they are hemizygous for the X chromosome. 3. Pseudoautosomal regions (PARs) on the X and Y chromosomes allow them to pair and undergo recombination during meiosis. Which of the statements given above are correct?

Options:

  • A: 1 and 2 only
  • B: 2 and 3 only
  • C: 1 and 3 only
  • D: 1, 2 and 3

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