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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Nearly all animals spend their life as _____ organisms.
a. gamete b. diploid-dominant c. haploid-dominant d. both haploid- and diploid-dominant
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
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
Which of the following is an autosomal recessive disorder?
A) hemophilia B) sickle-cell anemia C) Down syndrome D) Huntington disease E) Turner syndrome