A visual display of metaphase chromosomes arranged by size, shape, and banding pattern is ______.

a. a centrosome
b. a genetic disorder
c. amniocentesis
d. a karyotype


Answer: d. a karyotype

Biology & Microbiology

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Researcher discovers a new unicellular organism that contains a single circular chromosome and no membrane-bound organelles. Upon closer observation, the researcher notices that this organism can also fix nitrogen and produce methane

How should this organism be classified? A. as a bacterium B. as an archaeon C. as a eukaryote

Biology & Microbiology

In humans, helminths generally infect the ________.

A. nervous system B. urinary tract C. gastrointestinal tract D. skin E. muscular system

Biology & Microbiology

Which event may occur in all viruses,

prokaryotes, and eukaryotes? a. duplication b. aneuploidy c. translocation d. mutation e. none of these

Biology & Microbiology

All EXCEPT which of the following are monocots?

a. orchids b. wheat c. maple d. grass e. palms

Biology & Microbiology