What minerals play a role in healthy bone growth and maintenance?

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.