Which of the following characteristics do all plants share?

a. being unicellular
b. producing flowers
c. being a prokaryote
d. being an autotroph


Ans: d. being an autotroph

Biology & Microbiology

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You digest DNA from the frog Xenopus laevis with the enzyme NotI that produces sticky DNA ends. You can ligate your DNA to:  

_____  blunt AluI ends from Xenopus laevis. _____    sticky NotI ends from Xenopus laevis. _____  blunt AluI ends from bacteria. _____  sticky NotI ends from bacteria. _____  sticky EcoRI ends from Xenopus laevis. _____  sticky EcoRI ends from bacteria.

Biology & Microbiology

Chemists use the term "organic compounds" to refer to molecules that ________

a. contain the carbonyl or carboxyl functional groups b. are formed entirely of carbon and hydrogen c. contain primarily carbon and hydrogen d. are created only in living organisms

Biology & Microbiology

Atrazine is used as a(an)

a. pesticide. b. fertilizer. c. herbicide. d. substitute for PCBs. e. insect repellent

Biology & Microbiology

An example of a nonspecific chemical barrier to infection would be

A) unbroken skin B) lysozyme in saliva C) cilia in respiratory tract D) all of these

Biology & Microbiology