What statement is true concerning sensitive vs. specific case definitions?

A. A specific case definition should be used at the beginning of an outbreak to identify all cases.
B. A sensitive case definition will include more cases than a specific case definition.
C. A sensitive case definition will not include limitations on person, place, and time but a specific case definition does.
D. Both sensitive and specific case definitions should include the exposure or risk factor you are interested in evaluating.

Suppose a particular species of tulip plant has three alleles for the gene that codes for flower color. the cr allele produces red tulips, the cp allele produces purple tulips, and the cw allele produces white tulips. cr is dominant over cp and cw, and cp is dominant over cw. for each of the following crosses, determine the expected ratio of offspring for each flower color. cr cp x cp cw cr cw x cp cw 1 red: 1 purple : 0 white, 1 red: 2 purple: 1 white, 2 red: 1 purple 1 white, 1 red: 3 purple : 0 white, 2 red: 0 purple : 2 white, 2 red: 2 purple : 0 white