DNA sequences that do not code for proteins

A. All of the answer choices are correct.
B. are nonfunctional pseudogenes.
C. are structural, with repeated and translocated sections.
D. regulate gene expression.
E. transcribe mRNA, tRNA, and rRNA.


A. All of the answer choices are correct.

Biology & Microbiology

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When an atom or molecule gains one or more electrons, it is said to be:

A. energized. B. oxidized. C. polarized. D. reduced.

Biology & Microbiology

Unlike the 16S rRNA gene phylogenetics used to identify relatedness in Bacteria, the 18S rRNA gene is by itself unreliable for phylogeny of members in Eukarya

Indicate whether the statement is true or false.

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During DNA cloning, why is the DNA of interest inserted into the middle of the lacZ+ coding sequence in the plasmid

vector?

a. It makes the bacteria resistant to the antibiotic. b. It allows researchers to distinguish bacteria that contain the plasmid from those that do not. c. It aids scientists in developing new antibiotic treatments. d. It allows researchers to distinguish bacteria that contain the recombinant plasmid from those that contain just the vector. e. It makes the bacteria produce more clones.

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Which of the following doesn't involve molecules moving across cell membranes?

a) diffusion b) osmosis c) facilitated diffusion d) active transport e) induced fit

Biology & Microbiology