The incidence of cystic fibrosis, a recessive genetic disorder in the caucasian population of united states, is
in every 2,500 individuals. find the number of heterozygous carriers. (p + q = 1, p2 + 2pq + q2 = 1) a. 0.0392 b. 0.0254 c. 0.045

The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2

2polnis which of the following is an advantage of an in vitro experiment?me

In a cladogram, what occurs at a node? a derived trait appears. evolution is stopped. an ancestor dies. the cladogram ends. aa as s as ss what are the chances that their offspring will have sickle cell anemia? 0% 25% 50% 100%