Staphylococcus aureus is a common cause of food poisoning in the United States.

Answer the following statement true (T) or false (F)


True

Biology & Microbiology

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A karyotype is an image of _____ from of a single cell

a. base sequences b. chromosomes c. hereditary information d. clones e. nucleus

Biology & Microbiology

Which of the following describes a prion?

a. enveloped viral particle with double-stranded DNA enclosed by a capsid b. infectious RNA particle c. infectious proteinaceous particle with no associated nucleic acids d. a simple prokaryote with only a membrane and a nucleoid region

Biology & Microbiology

Proto-cells are considered to have

a. been simple membrane-bound sacs. b. been able to capture energy. c. been able to engage in metabolism. d. been able to reproduce. e. all of these.

Biology & Microbiology

The embryonic nervous systems of peanut worms (Sipuncula) and spoon worms (Echiura) show that these worms ________

A) are descended from segmented ancestors B) have appendages that are homologous with arthropod appendages C) do not express Hox genes during development D) are similar to each other because of homoplasy E) are surprisingly closely related to vertebrates

Biology & Microbiology