Which chromosome pattern is most common for a male?

Which chromosome pattern is most common for a male?
 
  a. XX
  b. XY
  c. YY
  d. XO

Question 2

Which chromosome pattern is most common for a female?
 
  a. XX
  b. XY
  c. YY
  d. XO

Question 3

In the hypothetical country of Whoville, only females are allowed to cook roast beast. This best exemplifies a _____ difference.
 
  a. gender
  b. biological sex
  c. psychosomatic
  d. prenatal

Question 4

_____ includes all behavioral characteristics that a society considers appropriate for men or women.
 
  a. Biological sex
  b. Genetic sex
  c. Hormonal sex
  d. Gender

Question 5

_____ theory argues that successful aging involves a withdrawal from society.
 
  Fill in the blank(s) with correct word