Protists do not constitute a kingdom because they do not share a unique common ancestor
Indicate whether the statement is true or false.
True
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Twins are concordant for a trait when ____
a. both twins share the trait with at least one parent b. only identical twins have the trait c. only fraternal twins have the trait d. both twins have the trait e. all of the twins' siblings have the trait
List four lines of evidence that support a link between cancer and genetics. Describe the ultimate cause of cancer and how an individual's life-style might reduce the chances of developing cancer
What will be an ideal response?
The colorless rootlike projections of mosses, liverworts, and hornworts, which anchor them to the substrate are called
A. rhizoids. B. tap roots. C. fibrous roots. D. specialized roots. E. storage roots.
Blue flower color (B allele) is dominant to white (b allele). If a population of plants in Hardy-Weinberg equilibrium contains white flowers (bb) at a frequency of 0.04, what is the frequency of the heterozygous genotype?
A. 0.96 or 96% B. 0.2 or 20% C. 0.32 or 32% D. 0.64 or 64% E. 0.8 or 80%