Archaea, Bacteria, and Eukarya are:
A. phyla
B. kingdoms
C. families
D. domains
E. none of the options listed
D. domains
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Which process can cause duplication? (Select all that apply.)
A) repair of one double-strand break by homologous recombination B) repair of two double-strand breaks that occur in different places on different sister chromatic C) repair of two double-strand breaks that occur in the same chromatin by non homologous end-joining D) misalignment of homologous chromosomes at repetitive sequences followed by crossing-over E) a mutagen that introduces point mutations
Nearly all animals spend their life as _____ organisms.
a. gamete b. diploid-dominant c. haploid-dominant d. both haploid- and diploid-dominant
Which of the following is an autosomal recessive disorder?
A) hemophilia B) sickle-cell anemia C) Down syndrome D) Huntington disease E) Turner syndrome
Which characteristic is associated with a benign tumor?
a. rapid growth b. poor cell differentiation c. expansion within the same tissue d. severe dysplasia e. metastasis