Which of the following are considered more

primitive based upon the structure of their limbs?
a. bats
b. reptiles
c. porpoises
d. penguins
e. birds


Answer: b

Biology & Microbiology

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Recently a class of infectious proteins with no associated nucleic acid have been identified. They are referred to as  

A.  bacteriophages. B.  latent viruses. C.  viroids. D.  prions. E.  virions.

Biology & Microbiology

There are three types of sequencing techniques described in the text: Sanger (dideoxy) sequencing, whole-genome

shotgun sequencing, and Illumina/Solexa sequencing. Which one(s) would be best to use for sequencing a single gene versus an entire genome and why?

What will be an ideal response?

Biology & Microbiology

Which type of microscopy would be preferred for showing fine internal detail of the eukaryotic organelles?

A. Bright-field microscopy B. Transmission electron microscopy C. Scanning electron microscopy D. Fluorescence microscopy

Biology & Microbiology

To exert effects on its target cell, ________ would require a second messenger

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology